When the guys have differences that they can't seem to resolve, Holly suggests couples therapy for them. But her move backfires when it becomes apparent that she is the cause of their problems.

The gang's relationships are thrown out of whack when it is discovered that there is more to Stuart than originally thought.

Holly & Haskell go on a practice date. Stuart tries really hard to fit in with Phil's friend and embarrasses him in the process.

Chopin, the dog that Stuart lost custody of in his divorce, stays over. Phil then accidentally switches the dog with a look-a-like, after having a one night stand with another dog owner. Holly suspects that Eden is having an affair with their married boss, Mr. Hubner (James Morrison), and is even more convinced when she discovers that Eden is pregnant.

Phil's desire to sign top mixed martial arts fighter Tommy Dunbar (Craig Gellis) as a client has the guys all attending a strip club, which lands Stuart in the hospital. Meanwhile, Eden buys Holly a new bra, which provides surprising benefits.

Holly offers to help Stuart impress his ex-wife, Lorna (Janet Varney), at a ballroom dance contest, but it turns out Holly is no help at all. Adding insult to injury, it appears that Lorna and her partner (played by Dancing with the Stars pro Maksim Chmerkovskiy) are the favorites to win the competition. Meanwhile, Phil meets his female match, Kendra (Garcelle Beauvais), who beats him at his own game.

Holly starts to hear her biological clock ticking, so the guys help in her search for a sperm donor.

Holly's continuing crush on her co-worker Paul, makes her determined to find out how he feels about her. Meanwhile, frustrated with being the only roommate who cleans the apartment, Stuart hires a maid who begins to disrupt Haskell's life.

Holly flaunts her new boyfriend, Paul, and Paul invites the roomates to a great party. But Stuart sees signs that Paul may still be too close to his ex-wife.

With her mother, Majorie (Judith Light), and sister, Jill (Amanda Detmer), in town, Holly tries to impress her "perfect" sister by creating a new identity. Meanwhile, the guys are enamored by Stuart's cooking.

A professional tennis player and ladies man (Zach Braff) is in town, but he turns out to be more of a man's man instead.

The gang crashes a party on Phil's boss's yacht; a very pregnant Eden goes into labor.

When the guys accidentally break Holly's vibrator, they scramble to fix it before she finds out so it doesn't ruin their friendship.

Holly's boyfriend tells the guys he doesn't want them around when they're together, which forces Holly to choose between playing poker or going on a date.

Holly and Haskell fight for the affections of a beautiful woman they met at the same time. Later, Stuart and Phil are forced to admit that their first impressions of their dates were wrong.

Holly dreads dating again so the guys create an online dating profile for her.

Haskell's ex-wife Margo gets amnesia after an accident and stays with Haskell to recover, only she thinks they're still married. Phil and Stuart spend the night in Holly's place and get to know her intimate sleeping behaviour.

When Phil and Holly make a pact to ask their bosses for raises, Phil gets fired. Holly tries to help Phil get his job back. Stuart's integrity is tested when he dates a British woman with repulsive teeth.

When Holly and Eden date two charming French men who shower them with gifts and glamorous living, they wonder if their dream dates are too good to be true. Phil and Haskell train Stuart on how to confront a bully at the bar.

Phil opens his own agency and enlists Eden as his temporary assistant to help sign his first client. Meanwhile, Holly hires Haskell as her temporary assistant. Stuart pursues the Yelper who smeared his practices perfect rating.

Holly dates a younger man; Phil and Eden become friends with benefits; Stuart convinces Haskell to pursue a woman he is interested in.

Holly creates chaos at her ex-boyfriend's wedding, where Phil and Eden realize they're falling for each other, and Haskell preys on the desperation of female guests.

When Holly spills one of Eden's secrets to Stuart and Haskell, group boundaries are tested.

Holly convinces the gang to give up their Christmas plans to spend the holiday together, but ditches the group when she meets a handsome stranger.

Holly convinces everyone to spend Christmas together, but then ditches the group.

Stuart's sister has shocking news about her marriage; Phil and Eden contemplate a guest in the bedroom.

Nicki returns, disrupting the lives of Stuart and Phil; Haskell and Eden attend a nude "Twelve Angry Men."

Haskell hatches a plan to win over Nicki. Stuart and Phil visit Stuart's old home one last time before it is sold.

When Phil unwittingly sleeps with a nun, he must keep Nicki from finding out; Haskell and Eden care for Holly when she is injured.

Holly sets Haskell up with a man; Stuart tries to help Phil conquer his fear of funerals.

Nicki is asked to accompany Stuart to an important dinner; Phil and Haskell consider vasectomies.

Holly dates an older man; Nicki has a proposition for Phil.

In the wake of Haskell declaring his love for Nicki, Holly tries to play cupid. Stuart secretly arranges for Phil to get together with his high school crush.

Holly represents Nicki in her divorce, but lets her own history with marriage get in the way. Phil tries to prove he’s not getting older by dating a much younger woman.

Holly joins a grief support group to meet a man. Stuart and Haskell help prepare Phil for a talk show appearance after he develops a lisp.

Phil is convinced that the woman Haskell is dating is really a man. Stuart feels guilty after sleeping with a woman who thinks that he is a war hero.

Haskell’s estranged brother shows up and asks for one small favor: his kidney. Holly mentors a teenager who turns out to like Eden’s job more than hers.

Holly throws a birthday party for Stuart and Nicki, but her real motive is to impress a guy she's just met who's new in town. Nicki and Stuart's dad shows up and ruins everything.

Haskell plans to attend a big event honoring him for his past bowling glory, but is quarantined with Phil and Stuart. Holly secretly rewrites Eden's college paper and almost destroys her dream.

The gang attends a charity silent auction. Haskell wins a police ride-along. Phil wins dinner with his favorite sitcom TV Mom. Stuart and Holly are forced to share a cooking lesson with a celebrity chef.

Holly sneaks into a sorority Eden is pledging to find out why she was rejected years ago. Haskell turns the guys' apartment into a pretend AirBnB to attract a woman.

Holly, over the moon, introduces the gang to her new boyfriend, Congressman Charles Hayward, but they soon begin to question his motives.

Holly’s engagement to Congressman Charles Hayward is put in jeopardy when a scandalous photo of her lands in the newspaper. Haskell has an idea for a great new app, but needs an investor.

Holly's wedding day arrives. Business partners Haskell and Nicki strike it rich.

After receiving a voice-activated operating system as a gift, Holly becomes overly attached to it. Haskell comes into money and controls Phil and Stuart with it.

Tired of dating drama, Holly decides to only pursue men she is not interested in. Haskell takes all of his money out of the bank.

Stuart recruits Phil for his a cappella group and Phil leads a rebellion. Haskell leaves Holly out of his will and she seeks revenge.

Stuart’s sister Nicki comes back from her European vacation with a female lover. Holly, inspired by Nicki, decides to try dating women.

Phil and Stuart have a fight with Haskell and he moves out. Holly, desperate to keep them all together, sends Phil and Stuart to bring him home.

Phil’s stint on a movie set leads to romance with the female star. Holly struggles with having to fire someone for the first time.

Phil makes a big mistake on his first date with a movie star so Holly has to infiltrate the red carpet to bail him out. Stuart and Haskell compete over who can get the most Twitter followers.

Holly and Nicki plan a girls’ night out, but wind up competing for the same guy. Phil realizes dating a movie star is much more difficult than he imagined.

Holly accidently convinces Stuart to quit his dental practice and buy a restaurant. Haskell, sick of paying alimony, tries to persuade his ex wife Margo to marry her fiancé.

Stuart and Holly convince Margo to hold her wedding at the restaurant; Haskell tries to stop Margo's wedding.