Epstein wants to become a veterinarian, but is discouraged by his guidance counselor since his grades don't show that he can.

A flu epidemic requires several advanced students to join Kotter's class, where they quickly outshine his struggling students. Kotter boosts the battered self-confidence of his Sweathogs by demonstrating that not all smarts are book smarts.

Arnold and Mr. Kotter persuade the Sweathogs to hold a telethon for much needed school supplies.