While Swamp Thing is busy stomping out a local forest fire, evil Solomon Grundy and his Undead Pet Club try to revive all the dead pets in the world and take it over. The Down Home Critter Gang must stop their evil plans before it's too late.
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.
