With Miss Hoover out sick, a substitute teacher takes the class and becomes an inspiring role model for Lisa.

Bart, Milhouse, and Martin pool their money to buy the new first issue of Radioactive Man, but their investment and their friendship are threatened when they can't agree on who will keep it.

A jaw injury from colliding with a new town statue turns Homer into a better listener while recuperating with his jaws wired shut, but once the wires come off, Homer does not go back to being loud and obnoxious and Marge becomes starved for thrills.