Charlie McCrackin

Jack tries to use his own students to get revenge on his rival; Principal Durbin attempts to control Jack, but is failing.

Stef tries to set up a business at school selling make-up; Jack gets into a dispute with the president of the school council.

Jack goes out with Mary, Stef, and Michelle; Durbin feels threatened when Helen begins doing the morning announcements.

Jack gives his students a brand-new revenge mission; Principal Durbin's secretary wants Jack to make something for the bake sale.

A student gets hurt when Jack leaves his class unattended. The students get excited about a substitute teacher.

Miles' publisher sends Jack an offer to write a book about feel-good philosophy; Durbin tells everyone who Mary chose for her emergency contact.