The Sweathogs convince Gabe to pursue his dream as a stand-up comic. His imitations of them are a success, and he gives up teaching for a job at a nightclub.

Kotter is a success at being a comedian but it is putting a strain on his marriage and his relationship with the Sweathogs. Second of a two-part episode.

Freddie is prescribed painkillers to treat a nagging injury he suffered playing basketball ... and soon becomes hooked. His friends become concerned about Freddie's increasingly scary behavior, but "Boom-Boom" tries to brush them off - after all, it's just "vitamins." What becomes even more scary is that Horshack blindly believes his friend's explanation, even though it becomes clear that Freddie needs help before something goes horribly wrong.