The former classmates reunite when Ethan invites them all to a surprise party for his fiancée, whom he met on the first day of third grade.
Lina is taken to the hospital, where Kat and Ethan arrive to find Richie, who has to explain to Kat that he ran over her sister. Meanwhile, Holly and Perry invite Kyle and Aaron to brunch in the hope that Kyle can get their daughter into a prestigious school. Nurse: Meera Simhan.
After taking too many pills, Richie calls an ambulance and ends up in the hospital with Lina. Meanwhile, Kat tries to convince Ethan that he has to stop being so nice to his former fiancée; and Kyle and Aaron entertain themselves by watching Holly cover a hurricane on TV. Joel: Wayne Wilderson. Joanne: Kasey Wilson.
Nicole panics when Duncan and Yonk become buddies, bonding over football and video games; Holly keeps dropping in unexpectedly on Kyle and Aaron in her ongoing attempt to get Oprah into Kyle's school. Fern: Sara Gilbert. Busboy: Ben Falcone.
Kat tells Ethan he's too worried about what people think of him and challenges him to taste 10 samples in a yogurt shop without buying anything; Richie and Lina go on a date; and Kyle tells Holly a lie in order to get rid of her. Counter Girl: Stacie Rippy. Mrs. Pagano: Gayle Samuels.
Yonk takes Duncan and Richie to Atlantic City for a fan event, and Nicole asks Duncan to prevent her husband from gambling; Holly has an embarrassing moment on camera at a petting zoo; and Lina and Ethan dress up for Halloween. Cameraman: Stacey Hinnen. Dealer: Tasha Tae.
Kat and Ethan both pretend to be other people's blind dates at a bar, but Ethan hits it off with the woman (Rachelle Lefevre) and doesn't know how to tell her he isn't the man she was expecting. Meanwhile, Nicole goes to see Duncan's reunited band perform. Dan: Ryan Doom. Jeanie: Zoe Lister-Jones.
Ethan, still pretending to be Dan Slutsky, goes with Sue (Rachelle Lefevre) to drop off her child at a party, unaware that the birthday girl is Oprah---and Ellen, Perry and Kyle recognize him. Meanwhile, Richie tells Lina he loves her and tells Duncan and Nicole that he's married. Palmer: Jaime King. Sam: Cameron Sanders.
Kyle and Aaron have Thanksgiving dinner with Holly's family, including her mom and unusual dad; Duncan and his mom join Nicole, Yonk and Yonk's scary daughter (Maile Flanagan); and Lina finds out that Richie's married. Mr. Ellenbogen: Robert Michael Morris. Mrs. Ellenbogen: Meagen Fay.
While fighting off a bee in his car, Richie plows into a convenience store and, despondent over losing Lina, he refuses to leave his vehicle, which causes a big scene and prompts Holly to rush there to get an exclusive. Joel: Wayne Wilderson. Fireman: Charles Emmett.
Yonk throws a party to celebrate his and Nicole's first anniversary, but Nicole is too distracted by Yonk's unusual gift to enjoy the festivities. Meanwhile, one of Kat's art-school classmates (Jaime King), whom she dislikes, moves into her building. Delivery Guy: Brandon Rodriguez.
Ethan and Palmer (Jaime King) date, and Kat reluctantly agrees to the three of them having dinner together, where Palmer surprises Kat with a confession. Meanwhile, Duncan and Nicole go with Richie to his old apartment to retrieve his clothes, and they have an ugly encounter with Fern (Sara Gilbert).
When Richie confesses to Duncan that he and Lina haven't had sex because he believes that he's not very good at it, Duncan encourages him to take the risk. Meanwhile, Ethan finds out that a man to whom Kat is attracted (stalking, actually) is the father of a patient, and he sets them up on a date.
An old classmate (Essence Atkins) of Nicole and Duncan's returns to town after getting divorced and asks Duncan on a date, and he's upset that Nicole doesn't mind. Meanwhile, Ethan and Palmer eavesdrop on a conversation between Kat and her boyfriend, and they hear something disturbing. Benjamin: Trent Ford.
Lina and Richie throw their first dinner party, and Richie doesn't have the heart to tell Lina her Moroccan chicken is horrible; Kat is worried when her relationship with her boyfriend gets serious. Jerry Rice has a cameo.
A blizzard strikes on Valentine's Day, leaving Kat and Kyle stranded with an oversexed Ethan and Palmer; Richie desperately trying to get to Lina; and Nicole and Duncan left with Perry, who makes a romantic dinner, where Duncan makes a confession to Nicole. Joel: Wayne Wilderson. Gene: David Kaufman.