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.

Jackson helps Laura and Rich build a submersible so that they can visit a site where the creatures spawn. Meanwhile, the Bennett's consider boot camp as a way to discipline Miles.