Laura and Richard reunite and use a GPS device to track one of the creatures to a local pier in California while Cirko and Lee consider asking Laura to join them in their investigation. Meanwhile, Miles and Phil fight to keep Nimrod a secret when suspicious Animal Control officers search for a missing neighborhood dog.

Cirko's life is in danger after he discovers the origin of the mysterious new species. Laura and Rich begin to fear for their own safety when they come into possession of a much sought after sea orchid. Miles sneaks Nimrod out of the house when his parents realize that he's been secretly keeping the animal as a pet.