the Benthos arrives, the creatures being fearful of the size of the research lab. Masao, having found out that Terry has entered the Trench against his and Jonas' wishes, suffers a heart attack. While tracking Angel, Jonas and his team see an opportunity to trap the meg in Grays Harbor knowing she would after a gray whale calf named Tootie, a whale that Sea World saved and released before Angel escaped. Sea World helps trying to coordinate Tootie's rescue with Angel's recapture. However, after netting Tootie, Angel closes in and eats her, disabling the trawler's winch, which also causes the helicopter Mac and Jonas are in to crash. Angel attempts to escape the bay, but the gill nets put in place across the inlet have her trapped. Enraged by this, Angel attacks the Lady Washington, a replica 18th century tall ship and terrorizing the wedding party using the ship. Jonas, realizing that Angel is angry she's confined again, urges Celeste to retract the nets. Diefendorf enters the Abyss Glider to try and lure Angel away from the tall ship and back to the William Beebe to be harpooned, but Angel kills him and escapes back into the ocean. Following this, Celeste begins to attempt to seduce Jonas and tries to get him to disclose the top secret location, Devil's Purgatory, where he first encountered the Megalodon 11 years previously, but Jonas refuses to give the location. Back onboard the Benthos, the mysterious creatures grow more bold in their attacks, disabling the Prometheus' engines after the sub unearths an immense fossil from the ocean floor. Heath inspects the fossil and discovers it is a subspecies of Kronosaurus, a marine reptile that has escaped extinction and the same creatures that are attacking the Prometheus and destroyed the Proteus. The Prometheus is ordered to the surface to be repaired and have bright underwater lights attached to the hull to repel the kronosaurs. Its sister ship, the Epimetheus taking its place in the Trench. Terry tries to escape via the Prometheus, but is prevented by Sergei. Terry senses a possible ally in the Benthos' captain and pleads with him to help save her life. He agrees and promises to meet her later that night. When Terry goes to meet him at the hangar, she discovers his throat has been cut by Sergei, who ambushes her. As he attempts to rape her, she fights back