When things go awry the day Marjorie moves into fiancé Adam's place, she doesn't want to interrupt him from his deposition work, so she calls on Brian for help -- forcing the two to take stock of their friendship. Meanwhile, Dave and Brian anxiously await a call from a potential client who could solve their money woes, Nic and Angelo consider their fertility options, and Deena is torn between staying home with her sick child or accepting a date from the cute divorced dad she met at her daughter's school.

It's Saturday and everyone wants something from Brian, but no one can find him. Brian has decided that he would rather spend the day with his new love, Lisa B. Meanwhile, Nicole, hopped up on her fertility hormone treatments, needs her brother to help her and Angelo with a car problem; Deena and Dave expect Brian to play "Barney" at their daughter's birthday party; Adam, stuck planning the wedding, wants him for some guy time; and Marjorie keeps leaving messages on Brian's phone to talk about their relationship.

Brian's apparent interest in his new girlfriend causes Marjorie to unwittingly sabotage the relationship. Dave, who is convinced that Deena is having an affair, turns what was supposed to be a simple golf outing with the guys into a complicated stakeout to catch his wife in the act. Meanwhile, Nicole has told Deena that spouses shouldn't keep secrets from each other, but she's hiding from Angelo that she's taking fertility hormone injections.

On the day of Marjorie and Adam's wedding, Brian struggles with his feelings for Marjorie while Adam confronts her about the past. Meanwhile, as everyone prepares for the wedding, best man Dave makes time to meet with Suzanne, a colleague he had an affair with; and Nicole, anxiously awaiting husband Angelo's imminent return from Rome, is determined to get Marjorie the veil she ordered.

Two weeks after Adam has been left at the altar, he still blames Brian for what has happened. When their friends finally try to bring them together, they end up coming to blows. Nicole helps Deena try to save her disintegrating marriage, while Deena reciprocates by letting a nervous Nicole practice mothering by babysitting her one-year-old. Meanwhile, when Brian and Dave go on a local cable program to promote their videogame, Dave is on edge when Deena and Suzanne -- the woman he's been having an affair with -- both show up on the set and meet for the first time.

To encourage each other to get over Marjorie and back out in the dating game, Brian and Adam bet to see who can get a girl first. Meanwhile, Brian adjusts to having Dave as his new roommate after Deena kicks him out of the house for having an affair; Nicole prepares for her baby shower, as well as a surprise guest; and the future of Zap Monkey is in jeopardy, which causes a financially-strapped Brian to try anything and everything to save the company.