With the approach of Sadie Hawkins Day, where the girls ask the guys to the school dance, everybody, including Horshack, has a date - everyone but Barbarino.

A student teacher joins Kotter's class only to find that normal teaching methods don't work with the Sweathogs. Then she adopts Kotter's style only to find out that it doesn't work for her.

When the opportunity to fight Carvelli in a boxing match arises, Arnold wants to be the one to do it; and when the other Sweathogs put down his manhood, he is even more determined to prove himself by getting in the ring.