The Creature Keepers organization is unraveling. As more cryptids decide to abandon the Keepers and live freely on their own, an influx of rapidly aging, suddenly retired Keepers are being dropped on the doorstep of the Eternal Acres Retirement Home (the Creature Keepers’ secret headquarters). Even Eldon is affected by a shocking act of abandonment, leaving Jordan and Abbie with the difficult responsibility of holding the Keepers’-and their grandfather’s-legacy together. They must locate the rogue cryptids and ultimately decide if these creatures can and should step out of the shadows and live among humans, which causes a fundamental rift between our heroes.

Complicating things further is more evidence of a yet-undiscovered creature-a fourth special cryptid with its own elemental power. Jordan and Abbie are trying their best to follow in the footsteps of their Grampa Grimsley, racing to find this mystery cryptid and keep its power from falling into the wrong paws. But destiny leads all paths to the same place: the horrible last stand of Chupacabra, fully armed with the four forces of the Perfect Storm!