Season 5: Episode 113: The Lost Weekend
Cliff and Clair plan to spend the weekend in the Poconos. Vanessa stays with Janet, while Rudy goes to her grandparents' house with Kenny. Howard and Denny learn that Theo will have the place to himself, and convince him to throw a party. The three guys and their dates are supposed to be the only guests, but several other friends manage to finagle invitations. Theo is left without a date to his own party when Justine comes down with the flu. More and more people show up, and the party quickly gets out of control. The guests eat all of the food and trash the house. Theo meets a girl and tries to find a place to talk, only to discover that partygoers have taken over his parents' bedroom. He becomes angry and kicks everyone out. Theo, Howard and Denny try to clean up the mess and repair the damaged items, but there are many things that can't be fixed. Theo immediately tells his parents the truth about the party. Cliff drags Theo out of the house and tries to force him to drop out of school and join the army. He eventually settles on making him work at a mission every morning.