When Mr. Turner goes back on a promise not to give a test on The Grapes of Wrath, Cory and Shawn lead the class on a strike, getting themselves into more trouble than they realize.
Meanwhile, Eric's girlfriend demands too much from him.
It appears that Cory has a tough school year ahead of him in junior high, when he learns that Mr. Feeny is the school's new principal, and he also gets on the bad side of the school's bully, Harley.