A submarine exploration team is dispatched to locate a missing underwater research vessel that has mysteriously vanished in a deep oceanic rift. Led by Captain Phillips, the crew includes engineers, scientists, and military personnel who must navigate treacherous underwater terrain and mechanical malfunctions. As they probe deeper into the rift, they encounter remnants of the lost vessel and strange, unsettling phenomena that hint at dangers far beyond mechanical failure.

The crew's journey grows increasingly perilous as they face unforeseen obstacles and creatures lurking in the depths. Tensions rise within the team as they attempt to uncover the truth behind the vessel's disappearance while contending with dwindling supplies and communication issues. Their expedition morphs into a desperate struggle for survival as they grapple with both the external threats of the ocean’s depths and internal conflicts, ultimately leading them to unexpected and sinister revelations.