When the evil Kroc hatches a plan to steal the Earth's water, Plastic Frog sets out to track him down and return the bodies of water to their rightful places.
Atlantis is under attack by the evil Ocean Master, and it is up to Aqualad, the Mermaid Nicoletta, and their superpets Fluffy the goldfish and Betty the beluga to defeat the supervillain.
The Joker has taken over a new candy store in Gotham and plans to swindle all the city's children out of their allowances--will Robin and his two super-pets, Ace the Bat Hound and Robin Robin, be able to stop him?
In the farmland outside Gotham City, all the farm animals are under the control of the Mad Catter, who is making them behave in bizarre ways and steal all the crops--can the Batcow defeat this mad kitty?
Starro and his mind-controlling alien starfish have abducted Lobo's space dolphins--can Hawkman and his super-pet hawk Big Red and Lobo's pet Dawg rescue the beloved creatures before they are used for evil purposes?
When Swamp Thing is called away to help with a fire elsewhere, Solomon Grundy and his zombie pets decide to take over the swamp--and it is up to Ace the Bat-Hound and the Swamp-Pets to repel the invasion.
The villain Scarecrow's servants, the Scaredy Crows, are coating Gotham City with fear dust, and it is up to Ace the Bat-Hound to find a way to save Halloween for the city's children.
When the evil Cat Crime Club tricks super-dog Krypto into eating a hot dog spiked with red kryptonite so that he cannot stop them from stealing all the Space Canine Patrol Agents' funds he must figure out a way to track them down and redeem himself.
When most of the Legion of Super-Pets are lured away by false alarms, the Legion of Villain Pets attacks their Kennel of Justice--can the lone remaining Super-Pet, Proty the shape-shifter, save the world by himself?