Nash investigates a judge's murder, and unwittingly triggers an Internal Affairs investigation. The Internal Affairs cops go bad, and only Nash Bridges and the SIU can stop them.

Nash has to deal with the fact that Joe may have 72 hours to live after being exposed to a deadly virus while Nash & Joe investigate a drug theft from a research lab.

A busload of San Quentin prisoners on their way to court is hi-jacked in downtown San Francisco. Nash has to track down two dangerous escapees, including a paramilitary activist who seeks bitter revenge on Nash.

A first-rate professional robber and his crew hit San Fran in a string of strong-arm jobs. Joe convinces Nash to moonlight as a private eye, searching for the SF Giant's short stop's missing car.

A world renowned hit-man has been hired to kill the chief witness in a far reaching drug prosecution. Nash Bridges must stop him. Only problem is, the hit-man turns out to be one of Nash's closest boyhood friends gone bad. Meanwhile, Evan works a stakeout with Bryn and gets sidetracked when he falls in love with a woman living upstairs from their surveillance target.

Nash and Joe trail two brothers who are heirs to a Mafia family. Nash becomes suspicious when he discovers Kelly once had a relationship with the younger brother.

While coming home from a late night bachelor party, Nash and some of his fellow cops become embroiled in a train heist gone bad on a BART train.

After a nearly 20-year absence, the notorious San Francisco serial killer, ""Zodiac,"" returns to taunt Nash as well as haunt Nash's mentor (who has since retired). But is it the actual Zodiac, or just a lethal copycat? Meanwhile, Joe goes undercover as a bike messenger to nab a free-wheeling drug dealer.

Nash is stuck with an eleven year old delinquent who's the link to busting a drug kingpin. Joe is reunited with his grown son J.J. and Nick wreaks havoc with Nash's attempt to find him a live-in nurse.

Nash and Joe cut a deal with Carlos Casas, a gangland money launderer, offering him a new identity in exchange for his testimony.

A people-smuggling ring brings Nash and Joe to the aid of a young man searching for his parents.

It's Christmas Eve, and Nash and his fellow cops are trapped at the SIU as they wrap up a murder investigation and a prostitution case. Joe borrows Nash's 'Cuda to get it detailed and freaks out when the car is stolen; Nash's personal gifts to Lisa and Whitney get mixed-up; personal crises abound as the cops deal with the Christmas holiday.

Nash and Joe have a task of escorting a secret key witness from the Witness Protection Program to San Francisco to testify in an important SIU-related case. They fall under gunfire. Nash realizes there's a leak somewhere on the prosecution's team. He enlists the help of Stacy to protect them until he can solve who it is and get the witness safely to San Francisco. Cassidy is stood up for a date and decides to go out with J.J. instead.

Joe goes undercover inside State Prison to bring down a ruthless Mexican gang leader who put out a hit (from behind bars) on a SFPD undercover cop who had infiltrated the Mexican Mafia. Nash runs the investigation on the outside, hoping to fulfill a promise to the dead man's widow by catching the trigger man. Naturally he'll have to overcome the distraction caused by Nick, putting together his will, who discovers some long-forgotten wealth.

Nash and the SIU uncover a counterfeitering group where the money is top-of-the-line Supernote quality. Moving in to bust the group, they discover a fake SIU gang impersonating the police. Cooperation becomes tense as suspicions abound over who and what to trust. In the interim, as Nick gets in over his head financially with his horse costs, Nash reluctantly agrees to work with Joe on an off-duty case searching for a Super Bowl ring. However, Nash and Joe soon find themselves impersonating a gay couple as the case develops differently than Nash anticipated.

Nash busts computer hacker/robber, Andy, and discovers Andy's committed the crime because his wife has been kidnapped. The crew of crooks want Andy's hacker skills as their ransom. The SIU must work to save the woman and bring down the crew before their daring daytime robbery is successful. Meanwhile, Nash and Whitney finally consummate their relationship.

Nash's sister, Stacy, is robbed, forcing her to come out of the closet as a lesbian. Nash deals with his own secret romance with Nick's nurse Whitney. The fallout from these family revelations takes place while Nash tracks down a kinky couple responsible for the robberies.

After Cassidy is hit in the behind by a stray bullet at school, Nash and Joe go on the hunt for the shooter and the dealer who's putting guns into kid's hands. Due to earthquake repairs on his apartment, Nash and Nick have to take up residence with Lisa for a few days. It's here that Nash meets Freddie, the apple of Cassidy's eye, the pain in Nash's behind, and learns that Cassidy's decided not to go to college.

Nash follows the trail of James and Lorraine, a thrill-seeking couple on a wild crime spree in San Francisco. Nash feels personally responsible for the fate of Lorraine when he discovers she is the daughter of a volatile SFPD Inspector. Nash's interaction with the young fugitive color his relations with Cassidy, who's semi-nude photo is splashed all over town in a racy safer sex poster.

Hot on the trail of a murderous criminal from Chicago, Nash teams up with a KAREN DECKER, a cop from the Windy City who's in every way his equal: smart, competent-and yes, sexy. Sparks fly between them as they track down the visiting villain together -until, that is, Nash learns his newfound partner is not as perfect as she's led him to believe. Joe, meanwhile, hires a pet psychologist to cure what ails Nick's racehorse, Mr. Woody.

Nash's old nemesis from the SIU, Rick Bettina, now a bounty hunter, is back and in competition with Nash as they both try to track down mobster Ray Goetz, who Bettina wants on assault and battery charges in Vegas, and Nash suspects of ""hitting"" a high-level mob boss. Meanwhile, Joe fears repercussions from Inger after losing his wedding ring.

Nash solves murders in Chinatown and helps out an old friend, Cedrick Hawks, a professional gambler who is in San Francisco to clear up a bad debt.

Nash and Joe butt heads with the leader of a team of Urban Commandos who has been hired to protect an inner-city community. While awaiting the birth of the new baby, Joe searches for the family crib that he lent to Nash seventeen years ago.

Nash and Joe help FBI Special Agent Katz recover a Suburban full of stolen FBI weapons. Joes sets Nash up on a blind date with his nanny.

Willie Nelson plays Earl Dobbs, a convict who gets a furlough from San Quentin to help Nash and Joe catch his former crime partner.

Nash and Joe track down a former mob underboss who's murdering San Francisco criminals. Meanwhile, Inger has to go out of town, leaving Nash and Joe with the baby.

Nash and Joe follow the trail of a criminally insane mental patient who believes he is the nemesis of Sherlock Holmes. Joe hires a baby nurse who takes over his life.

Nash, on the verge of closing a case, narrowly avoids getting killed in an explosion, losing a week's worth of memory as a result. With Joe's help, he has to retrace his steps, resolve the case, and deal with the various personal snafus resulting from his memory loss. Michelle joins the SIU.

Cassidy finds herself in the middle of an SIU case when she becomes the victim of a high-climbing jewel thief and Nash begins to close in on the suspect: her new boyfriend. Stacy becomes concerned that Nick is being turned into a lab rat at the university where he has volunteered for a research study.

A sniper terrorizes San Francisco on Halloween as a city-wide Blue Flu forces our SIU detectives to assume beat cop responsibilities. Joe tracks down a hard to find Halloween costume for Lucia.

When a reporter is murdered while covering the new ""French Connection"", Nash comes face-to-face with a startling revelation - his brother, a Vietnam MIA, thought dead for the last 24 years, may be alive and in San Francisco. Meanwhile, Lisa's sister, Lynette, arrives to house-sit at Lisa's indefinitely.

A fugitive is released from prison by mistake and seeks revenge on Michelle. Nash teams with Michelle to capture him. Meanwhile, Nash refuses to partner with Joe on an off duty case to protect a sportscaster being blackmailed, so Joe chooses Evan.

Sultry criminal and Nash's ex-girlfriend Tamara VanZant resurfaces, this time as a player in a plot to sell stolen plutonium. Joe plans to make a mint by marketing a secret-recipe salsa that's been in his family for generations. Robert Rodriguez stars as Joe's commercial director.

Rick Bettina returns as the head of the S.I.U. Joe is accused of stealing 3 million dollars from a suspect. Harvey has a torrid affair with a woman he once arrested.

Nash and Joe risk causing an international incident after British consulate workers fake the death of a convicted killer in order to use him for their own nefarious purposes. Joe resorts to extreme measures in order to get Lucia accepted into an ultra-elite school.

A million dollar bounty on Nash's head triggers an onslaught of attacks by a series of ultimate fighters. Michelle meets ""Mr. Right"" while on a stake out trying to trackdown an Internet rapist. Nash is convinced Cassidy's new boyfriend in gay.

Geraldo Rivera comes to the SIU to interview Nash and Joe. Nash arrives at the SIU after having his drink spiked with acid by a biker couple; and there's a ""mole"" in the SIU feeding sensitive information about Nash to Geraldo, which he uses in the interview. Meanwhile, our SIU cops must solve a mystery which begins as a routine shooting at a convenience store.

Nash is forced to take time off by Bettina.

Nash and Joe team up with a tough-talking NYPD Special Crimes Detective (Penny Marshall) in order to track down a famous fashion model's deadly stalker. Meanwhile, Harvey helps Evan track down his lost badge before Nash finds out. A shopping trip doesn't turn out the way Nick and Lynette had planned.

Nash gets involved with Irish terrorists, as well as his ex-wife Kelly (Serena Scott Thomas). Meanwhile, Joe looks after a party-minded Arabian prince awaiting a heart transplant.

Nash and Joe investigate several brutal drug-related gangland murders and follow a complicated trail of clues to a surprising suspect -- Bruce Sutcliffe, a multi-millionaire from a well-respected San Francisco family. When Nash discovers that Sutcliffe has been a major drug kingpin for years, he risks his job and his life to expose the magnate's secret life. Meanwhile, Evan and Bettina go undercover in a transgender beauty pageant to trap a blackmailing murderess who pretends to be a man impersonating a woman.

Bettina is accused of killing a high-class call girl. Only Nash can help Rick find out who framed him for murder. Meanwhile, a man masquerading as Joe has become a major romantic figure in town (with Joe's credit cards), much to Inger's chagrin.

Nash and Joe are on the trail of a ruthless gang of thieves threatening to release the lethal nerve gas over downtown San Francisco unless the area is evacuated. Once the area is cleared of people, the criminals plan to move in and rob the banks in the area. Racing against time to capture the criminal mastermind behind this scheme, Nash is surprised to discover that the gang leader is Pamela Smith, a beautiful, brilliant chemist who created the deadly gas. Meanwhile, a mysterious woman appears who claims to be Joe's daughter from a college fertility experiment in which he participated years earlier.

Nash must protect Lynette (Suki Kaiser) from ruthless Hong Kong mobsters when she unknowingly becomes involved in an Asian forgery ring. When Lynette's old flame, Brian, mails her a flawless forgery plate for $100 bills, Nash must protect her from the brutal Hong Kong gangsters from whom the plate was stolen. When Brian unexpectedly appears at Lynette's door, their attraction is re-ignited, but he soon becomes the chief suspect in Nash's investigation into the forgery ring, run by an Asian crime syndicate. Meanwhile, Joe's visiting father (Ismael Carlo), a sheriff from New Mexico, drives Joe crazy with his meddling until he uses his own brand of Wild West sleuthing to expose a murderer in Joe's apartment building.

When Nash and Joe investigate the mysterious disappearance of several armored cars and their drivers, they uncover a high-tech, covert crime operation run by ex-Navy Seals. When the robbers kidnap Evan, Nash must lure them out of hiding by staging an armored car delivery. Meanwhile, an off-duty case finds Nash and Joe searching for a star football player's dream girl, whom he spotted in a stadium filled with 65,000 fans but doesn't know. Also, the relationship between Evan and Cassidy intensifies as they struggle to keep their affair a secret from Nash.

When the ruthless high school dropouts go on the crime spree, Nash's search for the couple leads him into an underworld of heavy metal rock and satanic worship. As the intensity of the crimes increases, Nash must race against time to stop the desperate duo before they murder all the enemies on their ""grudge list."" ; Stacy and Nash meet Nick's long-lost love from the war years; Joe finds Evan and Cassidy in a compromising situation.

Nash discovers his life savings is gone when his accountant invests in a deal cooked up by "Bombshell" Tamara Van Zant. While trying to remodel the bathroom himself, Joe burns down his house and takes Nash up on his offer to move into Lisa's. Nick decides to take scuba lessons.

Nash and Joe are the targets of a bail bondsman, who bails out small time thugs and uses them as assassins. Nash and Joe also open up a new detective agency; Bridges & Dominguez - - their first case is finding the stolen wig of a Cher impersonator. Harvey and Evan's friendship is tested when Evan sells Harvey a faulty washing machine.

Nash and Joe are on the trail of a Prowler who is terrorizing San Francisco and kills a member of Nash's S.I.U. team. When Nick springs for dinner at a Hawaiian restaurant, Joe's son J.J. chips his tooth on a piece of poi; Joe and Nick conspire to get a settlement from the restaurant.

An innocent man is scheduled for an execution. Nash, working the entire case from the 'Cuda, must bring the true killer to justice before the midnight deadline. Lucia's bullying of a schoolmate forces Joe and Inger to attend conflict resolution therapy, which only leads to more conflict.

Nash and Joe are arrested for the murder of three SFPD Investigators. Told in a non-linear style, we slowly unravel a conspiracy trying to frame Nash and Joe. Caitlin Cross is introduced, the newest member of the SIU and Nash's evolving love interest.

Nash and Joe are on the trail of a renowned assassin who has come to San Francisco to kill FBI special agent David Katz. Lisa Bridges returns from Paris and announces she's engaged to marry a famous French chef named Henri, but there's a problem; Nash and Lisa's divorce was never finalized--they're still married. The new S.I.U. is introduced.

Nash and Caitlin go undercover as swingers to bust a male-female team who prey on wealthy swinging couples. Joe and Boz help Nick recover the corpse of an old friend to whom Nick made a war-time promise.

Nash becomes the objective of mercenaries controlled by a Singapore billionaire and his American counterpart, locked in battle to capture each other's most prized possessions. Bettina wants Joe and Evan to investigate his fiancee's alleged affair.

Nash pursues a deadly arsonist who torches a church and the only witness is Angel. Caitlin investigates Evan on a police brutality charge, probing into his past. Nash's friends and family plan a surprise birthday for him.

Nash and Joe have to babysit Mickey Tripp (Paul Gleason), a motormouth shockjock, after a body armor-wearing assassin tries to kill him. Their search for the assassin is compounded by the fact that Nick has hired them on an off-duty case to find his softball team's star pitcher - a Salvadoran defector named Chus (Jose Canseco), who's on the run from the INS (Karl Malone). Caitlin babysits her roommate's kids.

Nash finds himself defending Caitlin when she's the main suspect for a murdered CIA agent connected to her mysterious past. Joe begins working out with the trainer from hell. Cassidy and Nick enter a tango dance contest.

Nash is out of action after Caitlin accidentally shoots him in the butt. Joe and Bettina do a joint investigation with FBI agents to bust a clever con-artist. Cassidy is stalked by a deranged college student.

An ex-60's radical uses runaway kids to commit a rash of crimes. Joe goes undercover as a shoe salesman to clear Maria of shoplifting charges. Caitlin accompanies Nash to a ritzy ball.

Nash protects a beautiful rock star who's blood is coveted by a group of modern-day vampires. Boz Bishop buys a new car for Joe at a police auction unaware that drugs are hidden in it. While dog-sitting for Harvey, Evan discovers the dog park is a babe magnet and uses King to score dates.

Nash must stop a sniper terrorizing the city by shooting victims at random. A rat infestation forces Joe to confront his ""landlord,"" Nash, about the problem. Evan proposes to Cassidy, but in the wake of a serious traffic accident, Cassidy is left fighting for her life.

Nash and Joe are plunged into the underground world of steroid-crazed body builders when they investigate the murders of three body builders. Nash and Caitlin struggle to define their relationship as Cassidy struggles to get her feet back on the ground after her accident.

The Governor is missing, and Nash and Joe lead the ""off-the-record"" investigation into his disappearance. Caitlin, shut out, is determined to find out what he's up to. Joe and Inger attend a charity auction as a man's proxy to get on his good side, but overpay and get stuck with the art project.

A sleep-deprived Nash must track down an ingenious bomber targeting a corporation he feels has wronged him. Cassidy tries to conceal her nudity in a school play.

Nash and the SIU must re-open a serial killer's case file when a body is discovered and it appears to be Angel's. Bonnie, Harvey's ex-wife, returns with an interesting proposition. Joe and Caitlin square off as rival soccer coaches when their teams enter the playoffs.

Nash and Joe investigate a missing hockey goalie connected to the Russian Mafia with the help of kidnapper Tony B., who has lost all memory of the crime. Joe visits a fertility clinic when Inger decides she wants another child. Harvey and Evan shoot off the roof of the watch commander's brand new squad car and must get it fixed before he finds out.

An ex-cop is released from jail and seeks revenge on Caitlin who put him there. Nash teams up with Caitlin to capture him. Joe and Inger continue their efforts to become pregnant, discovering how difficult it is. Harvey and Evan go underground as wealthy conventioneers at a ritzy hotel bar to catch a follow-home robber.

Four robbers storm into a check-cashing outlet. They release tear gas grenades and rob the place. Nash, Joe, Harvey, and Evan respond to the silent alarm. Three robbers (who all turn out to be women) dump the cash into a getaway car (driven by another woman) and leave on foot. Harvey and Evan run into the getaway car, but let it go, not knowing that the robbers are women. Nash and Joe confront the fourth robber. Nash shoots him dead through the eye hole in his gas mask. The dead robber is Adrian Beltran; stolen is 100,000 dollars. The MO (modus operandi) is similar to a North Beach robbery crew from four years ago, who are now all in prison. Nash suspects Anthony Warrick, who ratted out the original crew. But Warrick retains heavy-duty lawyer Denise, and Warrick is clean with no connection to the dead man. While Harvey and Evan surveil Warrick, another robbery goes off. A trace of the tear gas grenades leads to Bunker Bob, but he only identifies the dead Adrian Beltran. A study of the

Handcuffed Skip Osaka jumps out the back of the moving 'Cuda. Nash and Joe give chase. Skip runs up a fire escape onto a power line. The line breaks, and Skip falls through a window. Nash and Joe place him in the trunk of the 'Cuda, and bring him to the SIU. A surprised Nash, Joe and Harvey discover the SIU barge is being towed away by a tugboat. The Head of the MCD, Reuben Banks, drives up and informs Nash the SIU has been temporarily shut down. The SIU is disbanded by MCD: Nash and Joe are assigned to Park Detail, Harvey to Homicide, Evan to Traffic, and Caitlin to Vice. At the Civic Center Park, Nash and Joe meet Colonel Culpepper, drug addict/transient, and Phil, the phony Vietnam veteran. The Colonel is shot dead in the park. Harvey and his new partner, Inspector Riley Webber, investigate the murder. Evan and Cassidy have set a wedding date. Harvey is best man, and he plans the bachelor party. Nash and Nick are informed, and Nash gives his blessing. Father Nick gives Cassidy her g

Nash and Joe meet Lyle who tells them the secret location the SIU barge has been towed to. Joe returns Lyle's chihuahua Ginger who has been held hostage in return for the info. A truck deliberately rams into a van containing three prisoners. Nash and Joe arrive at the accident scene, with Nash figuring out that a phony paramedic van has taken the three prisoners in a successful escape attempt. Nash, Joe, Harvey and Evan arrive at the empty and disconnected SIU. The Mayor has granted a one week reprieve pending the Police Commission hearing. If Nash and company catch the three escaped prisoners, the SIU will be saved. Head of MCD Reuben Banks daughter Gina's immunity deal is also dependent upon the return of one of the escaped prisoners - Gina's former boyfriend, Jimmy ""Shank"" Brasher. The other two escapees are Darnell Galloway and Elliot Wong. Gina is kidnapped by Brasher. Jake Cage of Fugitive Recovery is already on the case, beating Nash to interview Mr. Footman, owner of the stolen

When a controversial Latina actress is shot and killed, suspicion turns first to her former lover, then to a crazed stalker. Evan comes back to work after surgery, but Cassidy wants nothing to do with him. Caitlin moves in with Nash, and causes strife between her and Nick.

Nash and company foil a failing restaurateur's kidnap plan to ransom his nanny's child. Nick has sex with Bridget, Caitlin's inept maid. Inger returns for a visit, but leaves for Sweden again. Cassidy has a friend attempt suicide because he can't get a date with her.

Nash and company foil a jewelry heist ring posing as firemen. Nash hits a pedestrian and gets sued. But Caitlin has misplaced Nash's auto insurance bill, and he blames Caitlin.

Cassidy finds an apartment, only to be mistaken for the previous renter who has stolen money from drug dealers. Lonely Joe carries on an online romance, but the other ""woman"" turns out to be Pepe. Evan bottoms out in his broken relationship with Cassidy

Jake Cage and Caitlin go undercover to capture an international fugitive returning home for the wedding of his daughter. Nash and Joe steal a violin for corporate clients, only to have the violin stolen again by one of Joe's detective students. Evan gets involved with a street prostitute.

An embezzler with a twin, along with bumbling Rick Bettina, confound the efforts of Nash and the SIU to recover stolen city funds. Caitlin tosses Nash's baseball out the window after they miss their flight to Jamaica.

A psychologist establishes an insanity defense for her patient while they plan bank robberies. Nick wants to become financially independent by marrying a rich widow. Evan shows up for work drunk, forcing Harvey to confront Evan's substance abuse problem.

Evan puts himself under suspicion after he takes $40,000 of drug money during a bust; Nash and the SIU take down a drug dealer. Nash and Joe guard a chimpanzee, while Jake Cage goes undercover as an animal extremist.

Nash and the SIU discover the Cell Phone Killer's intentions are to kill his doctor. Lonely Joe keeps having erotic dreams about Caitlin. Evan gets fired from his bartender job.

A juror becomes a vigilante avenging murder victims. Caitlin and Joe go in on a donut business venture. Evan is arrested and calls Cassidy; Cassidy finds a new boyfriend.

A small time getaway driver sets up two robbery gangs to rob each other, while he walks away with the loot and complete immunity. Evan is brought in for another chance in Joe's off-duty case concerning a kidnapped son who has had a gender change. The 'Cuda hood is graffitied, and Nash puts Boz Bishop on the case.

Lowlife Frankie Dwyer returns, this time importing Vietnamese women as sex slaves, as Caitlin goes undercover as the seller. Nash has a tooth ache and refers to Caitlin by his first wife's name. Joe is aggressively pursued by bodybuilder Spike; Evan bumps into Cassidy in his job as a parking lot attendant.

Nash goes undercover as a hitman for a drug cartel. Nick's poker buddies plan a bank heist; Inger returns from Sweden with her mother; Evan gets his engagement ring back from Cassidy.

A married woman is murdered by her lover and his wife. Evan is beaten up trying to free his girlfriend/hooker from the clutches of a pimp. Joe takes Evan in, but Evan attempts suicide. Boz Bishop asks for a promotion at the detective agency.

Frankie Dwyer returns again, putting out a contract on Nash's life while smuggling heroin inside of tofu containers. Nash and Caitlin's relationship is strained; Inger sets up Nick with her mother Ulla; Evan is born again in a baptism.

Wearing his brother's uniform as a motorcycle cop and impersonating a police officer, a deranged man imagines and talks to his dead brother. Nash adjusts to his break-up with Caitlin; Nick fails his driving test; Cassidy asks Evan for help to move back into a Berkeley apartment.

A gang war erupts - Nash and the SIU puts a drug gangster and his crew out of business. Cassidy comes on to Evan as their lovemaking is shown on a live camera web site. Joe and Nick get involved in a tax scam with Nick's racehorse - Mr. Woody, as the horse is once again fit to race.

Nash goes undercover to stop a high-end heist artist. Joe helps a restaurant critic who receives death threats; Evan is back in the SIU; Caitlin takes an administrative job within the department; and Harvey helps out a troubled 12 year old boy.

A gang of female prisoners escape in search of five million dollars in bearer bonds, while Nash helps the woman framed for the theft of the bonds. Joe has trouble with a delivery boy, while Cassidy considers a career with the CIA.

A nurse who assists a plastic surgeon for the mob is murdered because she stole the before and after photos of altered mobsters. She passes a key to the hidden files to Joe, and Joe becomes a target of mobster Louis Fallon. Nick appears with Cassidy in her play, but suffers a bout of Alzheimer's. Harvey meets a new girl, but she is a former lesbian.

Nash and Joe get a tip from Tony B that there is a hit out on Chief of Police Frank Girard. But it's already too late, as the Chief's car is shot up - the Chief and his driver are killed. Nash and Joe arrive to find the carnage. The Chief was a close friend of Nash's. There was one driver, one triggerman, using a bright red Impala. The Impala crashed into a taxi, leaving behind a paint sample. Thanks to Caitlin's suggestion, the SIU and the Embarcadero station are sharing office space in the barge. There is total chaos, as Joe is forced to share a desk with Jake Cage. Tony B is interrogated. Tony B has a new business - Bay Area Switches. The trucking business is really a front to ship money to Las Vegas to be laundered. Tony B's contact is Ellen Holiday. Holiday is in contact with the assassin of the Chief and with Jimmy Z, head of the money-laundering operation. Holiday is arrested and questioned, but she reveals nothing. The red Impala is found, tracked to a Melvin from a wrecking ya

Nash and Joe arrive in Las Vegas, and locate assassin Roy McNeer's hotel room. His food is still warm, as Nash and Joe spot McNeer in a casino. Nash and Joe give chase, but are held up by the hotel security guards, as McNeer escapes. Nash and Joe check into the hotel - Pepe is the concierge. They locate McNeer's girl, Vivienne Reed, and she agrees to tell Joe if McNeer calls her. The truck full of half a billion in laundered cash is hijacked. The two thugs contact Tony B to ransom the truck for $50,000. Tony B and the SIU meet them and get the truck back. Harvey, Evan, Officer Ronnie and Tony B go to Las Vegas with the truck full of money. Jake Cage shows up in Las Vegas too, with orders from Caitlin and the Mayor's Office to bring back Nash. But Jake agrees to help Nash instead after an altercation. Nash meets with Ellen Holiday. She fills Nash in on the rest of the DEA investigation. Jimmy Z works for a drug king pin coming in from Shanghai - they have ordered the hit on Police Chief

An old nemisis of Nash's breaks out of prison. Joe finds a new house through Ulla, makes an incredible deal on it, but it turns out to be a disaster. Harvey's new partner, Antwon Babcock, joins the SIU.

Nash clashes with his new rival, Deputy Chief Max Pettit, who has assigned Cassidy to a dangerous undercover gig involving synthetic diamond smugglers and a deadly assassin working for the South African diamond cartel. Joe tries to back out of the house purchase; Cassidy and her new partner Rachel McCabe join the S.I.U.

Nash pursues an old flame who is involved with an arms dealer; Joe takes a private detective case to discover if a symphony conductor is having an affair; Cassidy struggles to let go of Evan's memory when she is asked out on a date.

Nash and Joe are on the trail of a high profile robbery ring that targets San Francisco socialites. Nash runs into Angel when Belinda Cruz hires B&D to prove her sister's pregnancy (she's a nun) is not a virgin birth. Joe enlists Nick to build a speed bump in front of is house.

A drug gang knocks over a DEA evidence warehouse and proves elusive for the members of the team; Antwon has a seizure while chasing down the leader of the gang.

Nash and Joe discover that someone is using their detective agency's name to stir up business for themselves, and that one of the impostor's clients is out to kill Nash. Survivor stars from the original season guest star (Dirk Been, Joel Klug, Gervase Peterson, Sean Kennif & Jenny Lewis)

Nash tries to stop a deadly game in which participants shoot and kill each other until only one is left alive; a wealthy family's gardener is murdered and Nash starts to fall for a beautiful new investigator working the case.

Nash must track down Rick Bettina, who escapes custody during his parole hearing, and recover the $2.5 million dollars in pension money he stole. Joe plays a modern-day Cyrano when the love affair between Dov and Amy abruptly ends, jeopardizing his remodel.

A madman guns down five people in an elevator, but leaves a young news reporter alive. Unfortunately, she's as interested in reporting the story as she is in catching the killer. Also: a woman steals Joe's car and commits a robbery using it.

Nash must resurrect Tony B., who fakes his own death to escape a mob boss, only to discover that Tony's ripped the guy off and has good reason to want to be dead.

Nash and Joe help a Canadian Mountie track down a ring of poachers who are illegally selling bear gallbladders, which are supposedly valuable as medicine and as an aphrodisiac; Rachel fears she may be pregnant.

Nash is suspicious of a teen's involvement in a brutal ambush that targeted a pair of lawyers, leaving one riddled with bullets and the survivor barely wounded. Meanwhile, Joe is burdened by an unwanted roommate, and Cassidy begins seeing Rachel's blind date.

Rachel is accused of murdering a man who was helping the police investigate corruption in an accounting firm, but Nash is convinced she was framed; Joe tries to find a ringer to represent the department in an arm-wrestling contest.

Nash's former lover Tamara Van Zant forges his name on a marriage license and claims to be married to him in order to protect herself from a thug out to kill her; Nick pretends to be romantically involved with a lesbian friend to deflect suspicion from the woman's son, a high-profile gangster from Philadelphia.

Nash and a Federal marshal (Philip Michael Thomas) are taken hostage by a Miami drug lord who wants to exchange them for a witness who's scheduled to testify against him in court; Joe tries to get out of being audited by the IRS.

Nash hunts for a vigilante who claims he's helping solve crimes by murdering deadly criminals, including a serial rapist; Nash's distant and eccentric cousin, who is also a cop, visits from Scotland.

Nash goes up against a gang of ruthless techno-geeks who are designing robots to perform robberies. Joe mistakenly sells a painting containing the Declaration of Independence at this yard sale and realizes he must do anything to get it back.

Nash begins to believe that a 17-year-old boy involved in the Southeast Asian drug trade may be his missing brother's son; Cassidy starts dating a plastic surgeon and considers getting breast implants.

Harvey becomes attracted to a fellow ""Deadhead,"" a mysterious woman who is the target of a murderous stalker; Joe is promoted to Lieutenant, but discovers that his new duties mostly involve paperwork; Nick injures his leg and makes life difficult for Nash and Cassidy, who are just trying to take care of him.

Cassidy is suspended following her involvement in the fatal shooting of a bystander during a bank robbery and becomes the target of department cronies who want to use her to get rid of Nash.

A famous mystery writer offers Joe $350,000 for ""Mr. Woody"", while he waits it out (hoping to get more money) meanwhile Harvey stumbles onto a robbery durring a Phil Lesh concert at the Fillmore pulled off by 2 women (Jill Ritchie & Vanessa Dorman)and all Nash and The SIU Team have to go on is that the getaway Harley has a unique design on the side. Finally getting the papers to send Betty Ann on her way, Joe presents them to Nash for his signiture, but before he can sign it and get her outta there, she uncovers that she's found some.....curious irregularites in the SIU files, and it seems that the SIU has a mole. and also Boz (Christian J. Meoli) and Antwon do some P.I. leg work for Nash and Joe to find who stole a demo tape from Dickie Lerner (Rickey Medlocke), a record producer, and it is Rachel's birthday. The last episode i remember seeing out in the west coast.

A serial killer who picks up passengers in a cab and then murders them stalks the city; Cassidy struggles with whether she wants to continue to be a cop.