Part 5/10:
Selena, the marine biologist, becomes central to revealing the truth behind the strange events as they delve deeper into the ocean. A sequence of terrifying encounters with monstrous beings culminates in her discovery of their connection to an underground magma layer, which ultimately leads to a cataclysmic shift in the oceanic environment. As Selena strives to document the truth, she faces resistance from the military and other authorities that seem intent on silencing her.