Brian tries to stay away from Bridget once he learns that she and his father once had an affair, but she's not making it easy. For comfort, he considers reconnecting with his mother, whom he hasn't seen in a while. Meanwhile, Brian and Adam are sentenced to community service at a homeless shelter to pay for the damage they caused at Ivy's bar; the very pregnant Nicole goes to some humorous extremes to induce labor; Deena goes on a dream date with her rich client, and Dave goes on a date with a much younger girl.

When Brian's Dad decides to take the real estate company away on a retreat, Brian and Bridget gradually get closer. Meanwhile, after Adam and Dave make an awkward visit to the strip club where Heather works, Adam wants his new wife to give up her job; and Nicole promises both Dave and Deena that they can accompany her when she goes into labor -- but neither is willing to give up the spot to the other.

Brian and Bridget have the conversation about their ex-relationships, but Brian doesn't include Marjorie. Adam and Heather have to deal with an overzealous ex-client of Heather's, and Nicole sets up a photo shoot to promote Deena's fledgling cupcake business. Meanwhile, Dave and Deena make a startling discovery about their one-year-old daughter, which brings to town a visitor from the friends' not-so-distant past.

Marjorie has returned to Los Angeles to help Dave and Deena treat the hearing loss of their one-year-old. Her arrival causes tension between newlyweds Adam and Heather, and coincides with Brian's six-week anniversary of being with Bridget -- a time when he traditionally dumps his girlfriends. Meanwhile, Nicole has trouble finding the right nanny until Deena introduces her to the very capable and handsome Jamie.

Now that Brian's father must sell his lake house, Brian invites the gang there one last time for a weekend getaway. He hopes to make Bridget feel more like a part of the group of friends. Meanwhile Dave and Deena grapple with making the decision about their daughter's ear surgery, and Adam tries to figure out his feelings for Heather and Marjorie.

Now that both Brian and Bridget have lost their real estate jobs and she has lost her condo, she moves into Brian's apartment, where he has taken a job as the building manager. Brian helps two extremely attractive women, Laura and Stephanie, move into the apartment downstairs. Meanwhile, Deena and Dave discuss whether he should move back home to help with their daughter's ear surgery recovery, Nicole fantasizes about Jamie, her "manny," and now that he's separated, Adam takes a vow of celibacy.

Dave is surprised to see that his new boss, Natasha, turns out to be his former intern. She has re-invented herself from being overweight and non-descript into a sexy, manipulative and shrewd businesswoman. While Bridget is away on a business trip, Brian's downstairs neighbors, Laura and Stephanie, convince him to let them use his apartment for a party that turns raucous. Meanwhile, the still-celibate Adam continues to pursue his law partnership, Dave moves into the guest room back home and Nicole has an erotic dream about her "manny."

While Brian wonders if his relationship with Bridget is the right thing, Laura senses that all is not right between the couple. Natasha's favoritism toward Brian becomes apparent when she asks him - and not Dave -- to coordinate a major presentation for some Japanese clients. Meanwhile, now that Adam has made partner, he breaks his celibacy rule and goes out on a date with Stephanie. And after Nicole and her "manny," Jamie, share a kiss, Nicole no longer thinks he is gay.

Deena's mother, Frankie, comes for a visit and, like everyone else, is unaware that Dave and Deena are back together. Now that Brian has broken up with Bridget, he gets separate invitations from his two attractive downstairs neighbors. Meanwhile, against Natasha's wishes, Brian assigns a big presentation to Dave; Adam and Nicole deal with the aftermath of their unexpected tryst; Dave gets into a fist fight with Deena's ex-lover; and the friends get a surprise when they visit Ivy and Jimmy's home for the first time.

After an embarrassing photo of Brian with fledgling actress Stephanie runs in the tabloids, she's instructed by her manager not to be seen in public with him. So Laura is secretly delighted when Stephanie invites her to go along with them to a hot Hollywood party and act as Brian's date. Meanwhile Deena's new cupcake store struggles until business partner Nicole comes up with a unique way to get more customers; Natasha sets the parameters for her relationship with Adam; and it's time for Deena and Dave to decide if they're going to sign their divorce papers.

Dave and Deena's plans for a secret getaway to renew their wedding vows turns chaotic. Meanwhile, Brian and Adam's babysitting duties for Dave and Deena's daughters are interrupted when Natasha shows up with a work emergency. Brian calls on Stephanie to look after the girls, but when a crisis occurs, he realizes that Laura is the one he should have asked to help. And after Nicole and Deena's Icing on the Cupcake store starts getting great press, an overwhelmed Nicole finds herself alone and without any help to tend to the many new customers.