The Sweathogs go into verbal battle against the debating class after their teacher insults the Sweathogs, and Gabe challenges them to a debate. James Woods guest stars.

Gabe and Washington have a problem after Washington makes the varsity basketball team and he decides not to take his exams.

Mr. Kotter returns to his alma mater, James Buchanan High School, to teach the Sweathogs, a group of remedial students. At first the students don't want to have anything to do with him until they find out he was once a Sweathog himself.

When Rosalie "Hotsie" Totzi confesses to Gabe that she's pregnant, Gabe is determined to find out who the father is.

Barbarino decides to run for student body president, but his campaign techniques create more problems than anyone bargained for.

It is a strange day when Vice Principal Woodman becomes friendly with the Sweathogs and Mr. Kotter becomes the school disciplinarian.