S01E01 The Nasty Knight
Tom and Manfred go back to medieval days to help a frail, timid knight--Sir Feeble Fred--win the hand of a princess by defeating a hulking bully of a knight in a jousting match.
Crabby Appleton has stolen all the weekends and holidays from the Nathaniel Annual Calendar factory, forcing continuous school for the kids and allowing Crabby unlimited rides at the fair.
Drawn in a simple style, it features a gee-whiz boy hero, Tom Terrific, who lives in a treehouse and can transform himself into anything he wants thanks to his magic, funnel-shaped "thinking cap," which also enhances his intelligence. He has a comic lazybones of a sidekick, Mighty Manfred the Wonder Dog, and an arch-foe named Crabby Appleton, whose motto is, "I'm rotten to the core!" Other foes include Mr. Instant, the Instant Thing King, Captain Kidney Bean, Sweet Tooth Sam, the Candy Bandit and Isotope Feaney, The Meany.