of the attack, Masao and Celeste return to Monterey to handle the fallout while Terry remains aboard the Goliath to finish the accident report. Unable to sleep one night, Terry goes for a walk and discovers a research lab hidden within the ship. She sneaks inside to explore it discovering an experimental fusion reactor. Terry is nearly caught, but manages to escape detection, wondering what Singer's true intentions in the Trench really are. Back in Monterey, Jonas and Mac finally examine the gates and realize that Angel's head on collisions have nearly destroyed the hinges. While Jonas dives in the canal, he is attacked by several great white sharks. Angel rams the gate again, this time escaping into open ocean, but not before Mac is able to tag her with a homing device. While recuperating at the hospital, Jonas realizes that Angel is ovulating, explaining her more aggressive nature and the male great whites swimming outside the lagoon doors. Celeste asks Jonas to join her in following Angel and help recapture her. Jonas agrees and works out a deal for him and Mac, but Jonas really wants to get close to Angel so he can kill her with a grenade rifle. Jonas and Mac join Celeste aboard the William Beebe where they are accompanied by first mate, Harry Moon, submersible pilot Richard Diefendorf, and Michael Maren, a marine biologist who constantly antagonizes Jonas. The team follows Angel as she heads north along the Pacific coast following whales on their summer migration to the Bering Sea. Aboard the Goliath, Benedict Singer, knowing Terry discovered his lab, manipulates her into joining him aboard the Benthos so she can analyze the records of the Proteus accident. While in the underwater lab, Singer allows his megalomania to take hold and he begins tormenting Terry, allowing his henchman, Sergei, to attempt to rape her, though Terry is able to fight him off. She finds an ally in paleobiologist Heath Williams, who promises to do his best to protect her from Sergei. While analyzing the sonar records, Terry realizes that the tapes have been edited, but submits a report saying the sub went down due to pilot error, knowing it's her only hope of Singer letting her off the Benthos. Terry accepts Singer's invitation to join the research sub Prometheus, but the sub is attacked by the same creatures that destroyed the Proteus, narrowly escaping when