Stewart ends up in the ER with a backache on, of all days, Valentine's Day. Ben somehow gets locked in Crystal's bathroom while she is taking a bath, and Oliver tries his best to get out of a Valentine's dinner with his mother.

Stewart and Lydia pretend to still be married to one another while his former receptionist visits. Oliver wants to stop dating a woman whom he finds annoying, but feels horrible because she happens to be friends with Ben.

The whole family gets stuck together in a snowy mountain cabin and the guys find a pregnancy test, but they don't know if it belongs to Crystal or Oliver's new girlfriend (who has slept with Oliver and Ben).

Ben, Oliver and Regina throw a wild New Year's Eve party so they can meet hot dates, but their plans are quickly thwarted by the arrival of their parents. Lydia has invited a handsome man she met at the hospital to the party and has no idea that he is Crystal's father.

Lydia becomes jealous when the kids befriend Crystal, then makes them go with her to visit their former housekeeper.

The siblings and their parents gather together for Thanksgiving (Crystal is out of town). Then they start to reminisce about the past Thanksgiving family get-togethers, before Stewart and Lydia's divorce: 1 year ago, 6 years ago, 7 years ago... and 1 year ago, again.

As the family attends the wedding of one of Oliver's old girlfriends, Lydia frets over feeling awkward at the ceremony since she is now divorced. Meanwhile, Oliver wants to show up the bride by bringing a hot date to the ceremony, but his companions keep leaving him.

Lydia and Regina are forced into a cooking class together, and Lydia gets friendly with the chef. Crystal misunderstands a simple gesture by Stewart, so he asks Ben and Oliver for advice.

Ben is forced to "break up" with his mother when he realizes she is using him to avoid dating again.

When Oliver is forced out of his fabulous apartment, he moves in with his brother Ben.

Lydia is jealous of Stewart because Monty, the family dog, likes him more.

When their coworkers discover Stewart's dating Crystal, Lydia decides to throw a party to prove that she's moved on, but disaster ensues when Oliver scores her a date with a gigolo.

The Barnes family bands together to help Ben get over his broken marriage.

Ben, who is a couples counselor, learns that his wife may be leaving him. This news comes to him at his own 30th birthday party with all his family present, including his father's new girlfriend.

Stewart accidentally suffered a hernia and has to go to the hospital for a surgery. While he's waiting to be prepped, the other Barnes family members are suffering relationship problems all around him. As Stewart wonders if the distractions his doctor and his anesthesiologist are having might cause his untimely death during surgery, the rest of the Barnes are wondering if they're cursed to be alone forever.

While Stewart tries to hook Ben up with the new neighbor, he is far too busy keeping it a secret that his ex-wife Naomi has returned and possibly wants to rekindle the relationship.

Stewart has the brilliant idea to put Lydia and Crystal in the same place in the hopes that they'll bond, but it backfires on him because they ended up sharing horror stories about Stewart instead. Meanwhile, Lydia's planning to have her living room floor redone but, unbeknownst to her, Ben and Oliver had stashed a hidden treasure underneath her floorboards since childhood — a treasure which Lydia had accused Regina of stealing for 25 years.

Lydia is arranging a bachelor auction and Benjamin feels left out when his mother doesn't ask him to be in it. Oliver helps Lydia to set Regina up with a doctor she has interviewed, but they know it won't work if Lydia shows signs of support.

Ben loses a patient to Oliver, then Oliver loses a patient to Ben. Meanwhile, Stewart and Lydia are audited by the IRS.

At the funeral of an uncle, Oliver and Ben meet a girl they both were in love with when they were kids. When she calls the next day and leaves a message to meet for a date, no one knows whom she meant and both are convinced to be the one she asked for. Meanwhile, Lydia and Stewart are arguing about what their inheritance might be.

Stewart ends up being named one of the city's top doctors by a Manhattan magazine. However, he is less than thrilled when his old rival shows up at his celebration party with none other than Lydia.

Oliver, Regina and Lydia all decide to use family members for their own personal gain. Meanwhile, Stewart tries to find a way to get Ben to take his lazy housekeeper.