After his spaceship malfuntions, Krypto arrives on Earth and immediately befriends a young boy named Kevin who takes him in.

A group of superdogs from outerspace come to earth to catch a villainous cat who has been wreaking havoc all over the cosmos / Ever wonder how Streaky got Krypto's powers? This story reveals that secret!

Kevin learns to take it easy on dogs, even if they have super-powers like Krypto, when he becomes a pet for a giant male dog / When the normal dogs imitate other animals, they discover Mechanikat and Snooky are up to trouble, and Mechanikat exposes Krypto to Kryptonite, and it's up to Streaky to save the day.