From TV Guide: Following his school's drug-awareness day, Henry thinks his family is on drugs and stages an intervention for Sean after he finds a suspicious plant growing in the yard.

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.

Jimmy’s science project is late, because his parents made him go with them to a Ramones’ concert. When Sean pleads Jimmy’s case with the principal, he only succeeds in getting Jimmy thrown out of school.

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.

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.

Claudia is looking forward to a trip to New Jersey to try to bond with Lily. However, things go from bad to worse when Claudia tells popular cheerleaders from Lily's school that her daughter is still a virgin. Lily takes off, leaving Claudia stuck - with no daughter, no luggage, and no clothes.

Lily winds up with the strangest bedfellow after Dean fails to pitch enough woo on her monumental 16th birthday. Meanwhile, Henry and Jimmy put Sean's shoddy fathering skills to the test with a con-game and a hot-wings binge.

Things get tense at the bar when Sean hires his high school fantasy girl as the bartender. And Lily freaks out when she tells Dean she loves him at a concert and can't hear his reponse.

The boys mock Sean when he can't get the lugnuts off of the car, leaving him to have his wife attract a trucker's attention to change the flat tire while he sits in drag in the backseat. Elsewhere, Eddie holds a garage sale at Sean's house where he sells off hot merchandise and his brother's possessions, and he welcomes the kids to partake in the sale. But Lily is mortified when Brad buys her old bra from Eddie, then boasts to the school that he and Lily have slept together.

For the second time, Lily has failed her behind-the-wheel exam. But this time it's not her fault, it's Sean's, who went out of her way to sabotage her driving test by teaching her rediculous driving tips, such as the all-important ""W-turn."" In other events, Claudia is having a devil of a time keeping Henry and Jimmy from playing a violent video game condemned by Sister Helen -- but she winds up addicted to it herself.

Claudia learns the results of her pregnancy test and Sean celebrates the news with a major purchase: a bar that Eddie plans to burn down for the insurance money. Meanwhile, Lilly and Brad try their luck at getting liquored-up; and Henry develops a craving for a different kind of watering-hole delicacy.

When the dump closes, Walt finds himself with an abundance of free time and begins hanging around the house, much to the dismay of Lily, who finds it increasingly hard to get alone-time with Brad. So she schemes to get him a date online... which turns out to be with a drag-queen. Meanwhile, Eddie finds out that his girlfriend has another boyfriend.

Sean has a hard time fighting off an amorous Claudia after lying to her that he's finally undergone a vasectomy. Meanwhile, Brad gets a chance to hang out with Lily by paying her to tutor him in a subject he already excels at.

Sean and Claudia are shocked to learn that Jimmy has been shoplifting and try to figure out his motivations for stealing. Elsewhere, Lily agonizes over what to wear for dinner with Dean's parents. Brad helps her find the perfect outfit, but Dean's parents turn out to be not so great. Meanwhile, Henry brings home his class's pet lizard.

Lily goes on a shopping spree with her ""emergency credit card,"" resulting in her having to pay back the bill by getting a job -- at the bar. Meanwhile, Eddie fumes over a scathing review of the bar; and Henry takes energy preservation to the extreme.

Claudia wreaks havoc at a wedding reception after losing her glasses -- though it may not be Claudia who lost them. Meanwhile Lily convinces Eddie to persuade Dean to get her the perfect birthday gift; and Brad begins spending way too much time with Jimmy.

Sean joins the Knights of Hibernia in order for Lily to compete in their beauty pageant.

Sean blows his shot at snagging a loan from Claudia's dad (Stephen Root) after losing the car he gave Lily for her birthday in a street race. Meanwhile, Henry and Jimmy put the squeeze on their grandfather for some hefty Tooth Fairy funds.

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.

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

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.

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.

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.