While cleaning up their home, Aquaman and Aqualad soon start witnessing their various undersea friends acting odd, and soon realize that they are the playful pranks of a water sprite named Quisp. Quisp asks for the two heroes help because his undersea home is being terrorized by fire trolls that were unleashed during an undersea volcanic eruption. After a quick battle, the fire trolls begin heading for the surface world. With the help of Quisp and the army, Aquaman and Aqualad attempt to fight back the fire trolls, but their attacks have no effect. Figuring that maybe a new experimental freeze device would be powerful enough to stop the creatures the heroes obtain the device against the fire trolls.