In the series finale, Claudia and Sean miss Lily's graduation (thus spoiling Lily's senior-prank plan) when Claudia goes into labor. Meanwhile, the Finnerty boys learn that Walt has a girlfriend... his cleaning lady!

Brad, after admitting he hooked up with his space camp buddy, Lana (guest star Mila Kunis), begs for forgiveness from Lily until he learns of her infidelity.

Sean becomes infuriated after receiving letters from the Home Owner's Association telling him to clean up his house, while Claudia is happy about the positive changes to the neighborhood. Meanwhile, Lily insists that Brad buys her an anniversary gift from a list that she's made... but he defies her wishes and gets her a sexy nighty... that he can't enjoy because he's busy picturing Sister Helen, who he ran into at the lingerie store. And Jimmy shocks the family by making an unusual lifestyle choice -- he announces that he's a vegetarian.

Sean (Donal Logue) tries to keep Eddie (Kevin Corrigan) from hitting on a woman (guest star Julie Claire) Claudia (Megyn Price) is consoling after a break-up.

Sean catches a fly ball that's still in play and loses a game for the Yankees. Claudia's upset when the bachelorette party she's throwing for her girlfriend gets disrupted by Sean, Eddie and the boys, who have been chased home by irate fans.

To save for a dream vacation to Mexico, Sean and Claudia start working extra shifts at work. This leads to chaos at home, with Eddie raising the kids, Lily getting her tongue pierced, Jimmy becoming a bully, and Henry panhandling and eating out of the garbage.

Sean has some explaining to do when Lily’s devastated to discover that she was born out of wedlock.

Eddie moves into the Finnerty basement after being evicted from his apartment. Claudia is not happy and tells him if he screws up he's out. Lily is jealous of Taya, Brad's new girlfriend, after she becomes the first girl on the Football team at school. Claudia's pregnancy interferes with her motherly duties.

Claudia is upset with Sean when she finds out he gambled the money for the baby's crib and used the winnings to buy a new TV. When Claudia accidentally breaks the TV, she convinces Eddie to bring her to the track so she can win money to repair the set. Meanwhile, Jimmy must endure a painfully long day of father-son bonding to keep Sean from finding out about the broken TV, and Lily enrolls in a Big/Little Sister program, but is dumped by her Little Sister.

Brad and Lily fight it out in a race for student body president...but it seems all the sniping and mudslinging is a mask to hide the former lovers' true feelings about each other. Meanwhile, Eddie is depressed and seeks the help of a quack psychiatrist...and Claudia tries not to learn the baby's sex, wanting to be surprised.

Sean (Donal Logue) tries to disguise the fact that he cut Henry's (Jake Burbage) hair himself instead of taking him to a barber shop.

Walt gives Jimmy a BB gun for his birthday, prompting an all-out war between him and Sean, which ends up with Walt in the hospital, shot in the rump.

When Lily is miserable because she and her girlfriends have been booed off the stage at the school's talent show, Sean and Claudia have some explaining to do. Meanwhile, the Finnerty's get roped into buying cases of candy bars that the boys are selling for school.

Sean's feeling sick, and Eddie convinces him that he has sympathetic pregnancy syndrome. Brad and Lily decide to just be friends but their hormones get the best of them. Jimmy tries to impress the new neighbor girl by pretending to be a sports fanatic. Eddie resumes his relationship with his ex, Faye, who's become more bitter and angry than ever.

Now that Eddie is spending all of his free time with Faye, lonely Sean finds every possible thing wrong with her, including the way she parks her car, which he ""accidentally"" smashes into. Meanwhile, Lily's attempt to make Brad jealous by dating Mocha Joey backfires when Brad points out that Lily and Mocha Joey have nothing in common; and Claudia gets upset when she finds out that Sean has told everyone that she is pregnant.

Sean's old friend Dave is in town, a children's performer who goes under the name ""J.J. Bodybuddy"". He lets Dave stay at his house...but it isn't entirely altruistic. He's promised the school that he can get J.J. Bodybuddy to do a show for the kids. The problem is, Dave--a recovered alcoholic who hasn't touched the stuff in ten years--gets too drunk to do the gig, and Sean has to put on the Bodybuddy leotard hismelf. Meanwhile, Lily is jealous of the new baby, and is letting her feelings be known vociferously.

With the bar in financial trouble, Sean and Claudia are having difficulty paying their bills, so Sean applies for a manager position with T.J. Shenanigans, while Claudia works from home collecting unpaid medical bills. Sean and Eddie contemplate selling the bar after finding out that they are competing for the same job. Meanwhile, Brad and Lily get back together, to the dismay of broken-hearted Taya. On the rebound, Taya starts dating Jimmy to help win Brad back.

Sean volunteers to referee Henry's soccer team and ends up making an unethical decision in the team's favor. Which in hindsight wasn't a great idea, when Henry gets an inflated ego. So Sean tries to make things right the following week by making an unethical decision in the opposing team's favor. . . Meanwhile, Lily flirts with the cute guy at the concession stand and the conversation leaves her walking on air. But when she starts to obsess over the introduction, she replays the scene over and over in her head, each time thinking that she made a bigger and bigger fool of herself.

Depressed that she doesn't feel sexy while pregnant, Claudia gets a boost when her cute study buddy, Steve, flirts with her. But her bubble is burst when she finds out that Sean paid him to do it. Meanwhile, Lily helps Eddie write material for his stand-up routine, but it backfires when another comic steals Eddie's jokes. Brad gets a reluctant Jimmy into Sciencenauts and his attitude changes when he finds out that the ""secret"" of every meeting involves porn.

Eddie's ex, Amy, displays naked photos of him in an art gallery, but he's too afraid to ask her to remove them... because she's crazy! Meanwhile, Sean is having problems trying to sell the Red Boot; Claudia has a baby shower; and Jimmy fills in on the cheerleading squad to get close to the girls.

In a desperate grab for attention, Lily makes out with the nerdish next-door neighbor, Brad O'Keefe, in his car; when Sean catches them, he responds in a rather unorthodox way--by throwing fried chicken at the windshield. Meanwhile, Walt babysits Jimmy and Henry and teaches them how to dig a hole; and Eddie tries to hook up illegal cable so he and Sean can watch softcore porn.

Jimmy's claim of demonic possession and Lily's skirt length prompt Sean's perceived battle with school head Sister Helen

Lily freaks out when Sean says they can't afford to send her on a ski trip with her classmates. But things get worse when she learns that Sean inherited some money and spent it on a guitar for himself.

Sean inadvertently finds a fake ID in Lily's bedroom. Sean and Claudia confront their daughter about her rebellious behavior, but they get few answers. They decide to hack into her e-mail to find out more about Lily's trouble-making friends. While they are checking, an e-mail comes in from a ""SweetandNastee."" Sean responds, pretending to be Lily. SweetandNastee gives Sean an address to a rave party in Yonkers. Sean and Eddie go to the address which turns out to be a dry cleaners. Convinced the rave is really at the dry cleaners, Sean and Eddie try to gain access to the party but end up getting beaten up by the dry cleaners' owner. Back at home, Sean and Claudia confront Lily, but she slams them for invading her privacy. Turns out she knew they broke into her e-mail account because she was online at a friend's house when she saw her name logged in. Lily made up the rave to teach her folks a lesson about snooping.

Lily's trip to an amusement park with a group of her friends backfires when she calls Sean to pick her up. He doesn't like what he sees, and when he realizes HE was the one called because everyone thought he would go easy on them, he proceeds to get them all in trouble by telling their parents.