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.

Streaky wants to impress his nephew, Squeaky, by making him believe he is a big-time superhero / A movie star dog wears a super-powered suit after making a pact with Snooky.

Streaky tells a tall tale to his fan club.

Andrea follows Streaky into Krypto's clubhouse and finds out both superheroes' secrets. Meanwhile, Mechanikat creates a Dirtbot on Earth to steal jewels and uses kryptonite against Krypto and Streaky! It's up to Kevin and Andrea to destroy the Dirtbot / Mertin the Magic Rabbit is wreaking havoc on the fair. However, things get worse when Krypto is caught in the act as well. Ace has to retrieve Krypto and try and out-magic Mertin with Stretch-O-Mutt!

When Mechanikat is rejected as a leader of a club over Glorg, he sets to capture Superdog once again with a very powerful suit of his own. When Krypto and Ace get a distress signal (from their space suits), they land on a planet with Kryptonite dust and soil. With Krypto's weakened powers, will he and Bat Hound defeat Mechanikat's new makeover?