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.
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 Terrific Whatzit, a superhero turtle, is tasked with stopping two slippery salamanders after they escape from a pet store and begin wreaking havoc on the city.
Hoppy, a superhero rabbit with the powers of six species, takes on Sobek, an evil crocodile, when he attacks the Animal Festival, but things are not what they seem and Hoppy discovers there is another evil mastermind at work.
When Gentleman Ghost awakens the undead monster Solomon Grundy, the members of the Justice League must use the technology at their disposal to subdue both Grundy and Gentleman Ghost.
Bizzarro, a not-very-bright duplicate of Superman, yearns to become a hero--and with some help from a pair of children he gets his chance when Metallo, a metallic monster with a kryptonite core, threatens Superman and Metropolis.
Superman is joined by Batman and Wonder Woman in an effort to stop Kryptonian criminal General Zod and his followers who have broken free from the Phantom Zone.
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.
