Rich comes to Laura's rescue when she is drugged and left in a field after discovering the truth about the deadly species' origin. The pair then go on a mission to track down the scientists behind the creatures' creation. Elsewhere, Miles joins a group of aquarium workers on a boat trip to find the unhatched eggs.

As a tsunami approaches, the Wilmington, N.C., area is evacuated, and Miles and his family join the exodus. Meanwhile, Laura searches for Rich, who has been arrested and is being held in an underground facility.