When some new animals arrive at the Fawcett City zoo, one of the gorillas soon recognized as Doctor Allirog, a talking super-intelligent animal that recently escaped from a cave, having been placed there by the Marvel Family.
A tornado ends up sending Mary Batson, Uncle Dudley, and Doctor Sivana into the Fourth Dimension as Billy and Freddy follow as well.they end up as playthings for a giant girl named Manga.
Doctor Sivana, Georgia Sivana, and Sivana Jr. end up meeting an alien who gives them an amulet that gives them superpowers equal to those of the Marvel Family.
Night Owl goes to the airport to steal some gold and two tiger cubs. When Mr. Tawny fails to retrieve them and ends up captured, it's up to the Marvel Family to save him and defeat Night Owl.
Mr. Atom plans to take over the world using robots he's created, but is stopped by both the Marvels and Uncle Dudley's new invention: a strong remote control door opener
the Doctor and Mister Mind create a magic grid that harnesses the power of the sun. Meanwhile, Mr. Tawny tries to audition for the opportunity to join Colonel Beauregard Jason's circus where each attempt goes comically awry
An evil alien known as the Star Master threatens earth. When the Marvels confront him, he captures Mary and Junior. Captain Marvel then goes to Hero High to enlist the aid of some of their students.