Ben begins to develop romantic feelings for Riley, but his reputation for being an irresponsible playboy works against him. Elsewhere, Tucker attempts to date a model and Bonnie uses Emma to get close to an attractive stranger.

Ben discovers a shocking secret about Riley's new beau, Fitch, and tries to warn her. Meanwhile, Bonnie accidentally sends a revealing message from Danny to Riley's cell phone. Things heat up between Danny and his new model girlfriend, Milena, and Tucker pounces on an opportunity to shine with his boss, Chase.

Ben discovers an endorsement opportunity for Danny with a new brand of Japanese energy drinks. Against Bonnie's advice, Ben convinces Danny to sign the deal, but he must pick up the pieces when things go haywire at Danny's commercial shoot. Meanwhile, Riley takes an interest in volunteering and accepts a job as a candy striper at the hospital.

Bonnie sets up her new bachelorette pad across the hall, and Ben and Tucker will do whatever it takes to force her out. They throw a huge party that threatens to damage more than Bonnie's new apartment. Meanwhile, Danny seeks Riley's advice on how to break up with Milena. Instead he ends up in a compromising position, which Milena mistakes for a marriage proposal.

Dr. Shaw determines Riley is the cause of Danny's inability to focus on the ice and bans her from Danny's next game. Meanwhile, Riley thinks things are moving too fast with Fitch and starts avoiding him, and gets her hopes up that Danny will make a move. Tucker is up for a promotion at work and his competition turns out to be Ben's latest fling, Jenna.

Ben tries to get Emma into daycare by flirting with the cute assistant manager, Megan. Megan insists there is no space, until she gets the idea that Ben and Tucker are a gay couple. Ben devises an elaborate plan to "break up" with Tucker in order to have a shot at dating Megan. Meanwhile, Riley worries that Dr. Shaw is trying to change Danny when Danny bails on their traditional "Halfaween" costume party.

Ben, Danny and Tucker band together to rescue Emma's missing stuffed animal. Meanwhile, Riley hosts a book club in an effort to make friends with the cool girls at work. When her mom, Jennifer, and Bonnie get wind of her plans, they invite themselves. Much to Riley's dismay, the ladies' long-standing rivalry erupts during the club meeting.

Riley plans to break up with Fitch, but then receives the news that Fitch is dead. She meets Fitch's dad, Winston Douglas, who asks her to deliver the eulogy at the funeral and tells Riley that Fitch planned to propose to her. Meanwhile, Ben realizes he might be in love with Megan, but she thinks things are moving way too fast. Tucker embarks on his "Tucket" list of things to do before he dies, and Bonnie schemes to catch the eye of Fitch's wealthy dad.

Danny plays matchmaker for Riley and his new teammate, who secretly likes Bonnie. Elsewhere, Tucker gets back together with an ex-girlfriend who doesn’t get along with Ben, and she winds up making Ben’s work life miserable.

Riley questions her future after taking the bar exam. Meanwhile, Amy takes a pregnancy test, while Danny tries to win over Amy’s father, who clearly dislikes him.

Megan’s dog is stolen while under Ben’s care. Riley tries to get her old job back with Bonnie’s help.

Ben convinces Bonnie and Ray to invite conservative Aunt Betty to Emma's baptism in the hopes she'll write a nice, fat check for Emma. The Wheelers nearly pull off their ruse as a perfectly normal family, until Ray's boyfriend Steve shows up demanding answers. Meanwhile, Ben enlists Riley to choose Emma's godfather, and she can't decide if Danny and Tucker are really up to the task.

Ben suspects that Riley finds him attractive, as she asks him to help her find a man to date. Elsewhere, Bonnie and Tucker enter a mascot contest for the New York Rangers, despite Danny’s objections.

Ben resorts to devious measures to get Emma into the neighborhood playgroup, and Danny turns to Riley for help with his and Amy's relationship problems.

Ben learns why Riley doesn’t like celebrating her birthday and it’s all his fault. He knows he needs to make it up to her and plans a perfect birthday surprise, but in typical Wheeler fashion, disaster ensues. Bonnie realizes she may have made a mistake in filing Emma’s parental rights paperwork and Ben doesn’t officially have sole custody. Bonnie enlists Tucker’s help in tracking down Emma’s mother, Angela, to re-sign the papers. Meanwhile, Amy calls Danny on his lingering feelings for Riley.

Ben's quest to procure Emma the hottest toy of the Christmas season creates ill will; Tucker and Riley help Bonnie with holiday decorating.

Ben and Riley try to jumpstart their relationship but Emma's mom, Angela, gets in the way. Tucker tries to help Danny get over his failed relationships.

Riley wonders if Ben should give family life with Angela a shot.

Tucker scores Danny an interview on the Mary Hart Show.

Bonnie's new boss gives her an impossible apartment listing.

The guys start a campaign to be on their building's Resident Board so they can keep their rooftop beach. Riley and Bonnie go on a double date.

Ben and Tucker swap names while pursuing a woman. Elsewhere, Riley runs into a former rival and enlists Danny in a revenge scheme; and Bonnie gets Tucker to assist her in creating a slogan for her new business.

Ben tries to score a second date with Heather in order to win a wager with Riley. Elsewhere, Bonnie asks Danny to end her relationship with Brad for her, and then she becomes interested in Brad's dad; and Tucker uses Emma to improve his dating life.

Tucker pretends to be a lawyer in order to please his dad, and Ben helps with the charade. Meanwhile, Riley develops a crush on a British guy, but Bonnie mistakenly thinks she's fallen for Danny; and the gang's trip to a Renaissance faire goes badly.

Phillip may lose his visa thanks to Ben. Meanwhile, Danny dates a sports reporter; and Tucker adopts a phony British accent to impress women.

Tucker's new girlfriend used to date Ben but doesn't seem to remember. Riley is invited to a spa day with her boss.

Bonnie sets Ben up on a date with an energetic gal who's similar to herself. Elsewhere, Danny gets his dad's cherished car out of storage, but problems arise when Riley and Tucker take it for a spin.

Ben throws a bash for Emma's first birthday and puts Tucker in charge of entertainment. Meanwhile, Ben encounters an ex-girlfriend who's hiding a big secret; and Danny uncovers shocking news about Riley's family.

Riley starts a new romance. Meanwhile, Bonnie wants to rekindle things with Brad, so she asks for Tucker's assistance.

Ben takes Bonnie to see Bon Jovi to thank her for everything she does for him and Emma.

Riley tries to figure out who her biological father is and comes up with two candidates. Elsewhere, Tucker blames his dad for his parents' impending divorce, so Bonnie attempts to help by getting Tucker's father to be less rigid.

Riley is looking forward to meeting Philip’s sister from England, but her excitement soon vanishes when it becomes obvious that Georgie is less than impressed by her brother’s taste in girlfriends. Danny’s contract negotiations are in jeopardy when Bonnie tangles with the Rangers’ new general manager, Valerie.

Ben, Danny, and Riley take stock of their lives when they review their fifth-grade time capsules.

When Ben misses out on seeing Emma's first steps, the rest of the gang try to recreate the moment for him.

Ben and Tucker pose as fraternity pledges after Bonnie sells their money-stuffed foosball table.

Ben hopes to rekindle his romance with Riley when he joins her on a train trip to Florida.

Ben and Riley learn the truth about Danny's feelings for Riley; Danny considers moving to Paris.

Ben, Danny and Tucker end up in jail when their plans to attend a big Halloween party go awry.

A grumpy Ben wishes there was no such thing as Christmas, then is shocked when the fulfillment of his desire not only erases the holiday, but Emma's existence as well.

Danny prepares to join Georgie in Paris; Ben suspects that Riley may have feelings for his brother; Bonnie begins selling Danny's hockey memorabilia.

Danny turns to Bonnie's ex Brad for help, as he doesn't want the gang to know what happened with Paris and Georgia.

Tucker enlists Ben and Riley to appear on Mary Hart's program and reveal how they foiled an attempted mugging; Bonnie hopes to get rich by using Emma in a series of Internet videos.

Danny receives a cameo role on "General Hospital" and nervously prepares for his scene with actress Kelly Monaco; Tucker and Ben stage a funeral for Bonnie.

Ben and Danny gamble on their mom's love life.

Ben panics when he forgets his mother's birthday; Danny learns surprising news that overshadows Bonnie's party; Emma is injured while in Riley and Tucker's care.

The navy are in town so Ben and Tucker pretend to be sailors in order to score with the ladies.

Danny stumbles upon a family secret while planning a birthday bash for Bonnie with Ben, Riley and Tucker.

Bonnie and her old boyfriend Brad are in competion for a huge listing so she decides to seduce him in order to beat him.

Riley knows she has to tell Danny she has feelings for him before his relationship with Robyn gets any more serious.

After making a mess of her confession to Danny, Riley retreats to her parents’ house to hide.

Emma's babysitters feel unappreciated, so they go on strike, forcing Ben to bring Emma along on his dates and shifts at work. Meanwhile, Danny and Bonnie enroll in a cooking class with her favorite chef; and Tucker tells Riley to invent a fake boyfriend.

Ben and Riley make a bet concerning strangers in a bar and it leads to trouble at work for both of them: Riley sleeps with a stranger who becomes her new boss, and Ben sleeps with the wife of the man who's trying to purchase the bar where he works.

Tucker hires Riley to represent him in a lawsuit against a construction company, but his hazy memory makes the case challenging for her. Meanwhile, Bonnie predicts her sons will fail as bar owners, and she attempts to hasten the demise of their business.

Ben corrupts Ross by spending too much time with him, which infuriates Riley and leads her to declare a war in which Ross—unbeknownst to him—is the prize. Meanwhile, Bonnie wants to join the guys' poker game.

Ben attempts to work out who should receive custody of Emma in the event of anything bad happening to him.

Riley hosts a cocktail party in order to meet Ross' friends, and Ross tells Ben not to attend. Meanwhile, Danny tries to figure out his new girlfriend's last name; and Tucker starts divulging secrets after he has too much to drink.

The gang reflect on their past entanglements, forgetting to safeguard a cherished item of Bonnie's in the process.

The gang head to Las Vegas, where Tucker's hidden hobby is exposed.

In the Season 4 finale, Bonnie's wedding planner quits as her big day draws near, so her best buddy, Charlotte, volunteers to help, but Charlotte has an ulterior motive. Meanwhile, Ben decides to let Danny and Riley have a shot at romantic happiness.

Ben meets someone new, and Riley has a surprising reaction to Danny’s proposal.

When Emma starts calling every woman she sees “Mommy,” Ben decides it’s time to find someone with whom to be serious. He turns to Riley to find him a date, but she thinks Ben is not ready to settle down and sets out to “build a better Ben.” Meanwhile, Danny asks Bonnie for help when his sleeping troubles affect his hockey performance. But her help could get Danny into even bigger trouble with his team.

While looking for a new bar manager, Ben interviews his old crush Sam, and decides to get revenge on her for never noticing him in high school. But things don’t turn out as planned.

After witnessing the wrath of Tucker’s boss, Mary Hart, Ben films one of Mary’s rampages intending to show Tucker how badly he’s treated.

Tucker finds Zoey snooping around his apartment and assumes she is there for him, so he takes it upon himself to ask her out. However, Zoey believes Tucker is setting her up with Ben. Danny finds himself in a similar situation when he tries subtly asking Sam how he feels about Ben, but she thinks Danny is asking her out. And Riley finds herself in an uncomfortable situation when her client tries to take things to the next level with Bonnie. Are there any perfect matches?

When Danny finds out that Ben is still Riley’s emergency contact, he acts as if Ben and Riley’s relationship didn’t count. So, when Ben attempts to prove that his and Riley’s relationship meant something, things become awkward for Riley and Danny. Meanwhile, Bonnie flirts with someone who’s in power to further her own agenda, and Tucker rekindles an old flame.

Emma’s mom, Angela, returns wanting to make amends with Ben and build a relationship with Emma.

When Ben learns that Sam’s living arrangements have fallen through, he schemes to push Danny and Riley to move in together so Sam can take his room.

Riley is frustrated that Ben only has eyes for Sam and not for Zoey, who she thinks is perfect for him.

Sam invites Ben, Riley and Danny to the Hamptons for the weekend, leaving Ben confused as to whether he wants to be with Sam or Zoey. Riley finds some old home movies of everyone in high school, but she discovers more than a trip down memory lane. Meanwhile, Bonnie is convinced that Brad has moved on, so she also moves on with another guy, however their evening does not turn out as planned. And Tucker is excited to finally have the apartment to himself.

Danny is desperate to make up with Riley after their recent breakup, but she is still furious after learning he hooked up with Sam in high school. Determined to prove that she is not overreacting, Riley puts Danny on “trial” for breaking her heart, with Bonnie acting as Danny’s lawyer. And Ben tries to save face with Zoey after discovering that her ex has returned to get back together with her.

Ben discovers Tucker has been making extra cash by visiting a sperm bank. In order to help Tucker pick up a nurse at the bank, Ben agrees to donate his own sperm but quickly regrets his decision after a couple chooses his sample. Riley and Danny continue to fight while attempting to host their friend’s engagement party. Their moms, archenemies Bonnie and Jennifer, team up to get Riley and Danny back together.

Ben admits he never graduated high school and decides to go back to school in order to set a good example for Emma. Bonnie later confesses that she also did not graduate, so both must pass a final exam, instructed by Ms. Gilcrest, in order to get their diplomas. Riley and Sam are both inducted into the athletic hall of fame and argue over prime territory for their trophy case.

Bonnie is less than thrilled when she finds out that Ben invited her estranged mother Nana Lyle to town for Emma’s preschool’s family weekend. Meanwhile, Riley and Tucker enroll in an improv class in order to step out of their comfort zones and help them out in their respective careers.

Ben poses as Bonnie’s husband, Brad, when her friends from work don’t believe that she has an attractive, younger lover. When Danny begins dating a beautiful actress as a publicity stunt, Riley, who believes the relationship is real, decides to go back out with Ross to make Danny jealous. Tucker tries to further his entertainment reporting career by getting the real scoop on Danny and his new girlfriend.

As Ben and Riley both realize they are in for more than they bargained for with dating older, more mature adults, they work together to come up with a plan to get out of their respective relationships. When Bonnie and Tucker gain insider information about players on Danny’s hockey team, they bet against the Rangers to win some cash.

When Ben receives an anonymous note from a past love interest asking for a second chance, he does whatever he can to find the mystery girl. Danny misunderstands a note he thought was left for him and tries to get Riley back. Tucker, Riley and Bonnie enter Emma into a baby beauty pageant to get footage for Tucker’s news segment, but Riley goes too far.

When Ben’s first date with his new lover doesn’t go well, Danny and Riley step in to help sort out the couple’s issues, but their assistance quickly causes more harm than good. Tucker decides to tell his dad about his new relationship with Renee, one of his dad’s co-workers, but panics when he learns that his dad may have feelings for Renee too.

After Emma accidentally pokes holes in Ben’s stash of condoms, Ben, Tucker and Danny all fear their girlfriends might be pregnant. They discreetly try to find out if there’s anything to worry about while the girls pretend to have pregnancy symptoms to get them to confess the truth.

Ben forgets Emma’s birthday and attempts to combine her birthday party with a beer stand at the neighborhood street fair, but doing both at the same time proves rather difficult. Danny and Riley come to a crossroads when they are both offered new career opportunities. Bonnie and Brad must decide how to move forward once Brad returns home from his spiritual quest with a new outlook on life. Tucker cannot seem to get anyone’s attention as he processes through some exciting news of his own.

Ben is still enthusiastically searching for the mysterious Elle. Danny and Riley are hunting for a good doctor to help with the pregnancy, and Bonnie desperately wants to be involved. Tucker is back from Los Angeles, but refuses to tell anyone what happened while he was there.

Ben learns some interesting facts about Tucker’s recent date, so he enlists Danny’s help in finding out the truth. As Bonnie and Brad are preparing to set off on their trip around the world, Brad is arrested by the FBI.

When Ben believes he finally has found a no-strings-attached hookup buddy, Riley attempts to prove to him he’s sorely mistaken. Meanwhile, Danny ends up in a professional wrestling match.

Tucker learns that the Mother’s Day special he produced was nominated for a New York Entertainment Award. Tucker’s mom surprises him by showing up to be his plus one to the ceremony, which throws a wrench in Tucker’s plans to have Bonnie pose as his mom. Riley is beginning to show in her pregnancy and worries if this will hold her back from being promoted to junior partner.

Sam comes back into the picture wanting to give her and Ben’s relationship another chance, but Ben hesitates on whether or not that’s a good idea as he’s still searching for the mysterious Elle. Little does he know, Bonnie is hired to be Elle’s new realtor. Danny and Tucker volunteer for a charity ice skating show featuring Emma’s favorite princess, while Riley practices parenting.

Danny is being overprotective of pregnant Riley, so Ben surprises Riley with a day off and a hike in the woods to get some time of freedom. Worried that Ben is too irresponsible, Danny sneaks after them only to learn that Riley is just as scared of becoming a parent as he is. Bonnie learns that her boss may be the reason Brad is in jail, so she schemes with Tucker to gather evidence and set Brad free.

Ben is jealous when he learns Bonnie is sending Danny on a cruise to celebrate becoming a dad, so he and Danny hold a Wheeler War to see who deserves the trip more. Meanwhile, Tucker and Riley run into Tucker’s ex-girlfriend at a Lamaze class. In order to look impressive in front of his ex, Tucker fibs about where he’s at in life which snowballs into a chain of bigger lies and awkward encounters.

Ben meets a runaway bride who is convinced that fate has thrown them together in the same way Ben believes he and Elle are meant to be. Tucker and Ben then figure out how to get out of the situation and back into the good graces of the bridesmaids unscathed. Danny and Riley go on their babymoon cruise, but Bonnie decides to tag along after Danny reveals that he hopes he and Riley will elope.

When Tucker learns that his ex-girlfriend Sondra is newly single, he confides to Ben that she’s the “one that got away.” Ben offers to be Sondra’s rebound to tee Tucker up for success. Bonnie and Riley bond while camping out in a department store to score a sale on a crib. Danny tries to babyproof his and Riley’s apartment do-it-yourself style but seems to break more things than he can fix.

Danny and Ben are eager to find out the sex of Riley and Danny’s baby, even though Riley would prefer it to be a surprise. In their quest to find the truth, the brothers create a chain reaction of mix-ups. Meanwhile, Riley fights for Brad’s innocence in his final trial, and Tucker auditions to be in a new courtroom reality series.

Riley is confined to the couch with the baby due any second while Tucker tries to help Danny decide what to buy her as a “push gift.” Ben begins to feel like an insufficient parent when Emma’s upcoming mother-daughter talent show leads Emma to ask questions about why she doesn’t have a mother.