In the Bering Sea, a salvage crew discovers the remnants of a luxurious passenger liner, the SS Antonio Graza, missing since 1962. The crew, led by Captain Sean Murphy and featuring salvager Maureen Epps among its diverse members, is lured by the potential of untold riches within the supposedly abandoned vessel. Upon boarding, they find a scene frozen in time, with personal belongings and valuable cargo untouched. Spurred by curiosity and the lure of wealth, they decide to claim the ship as part of a maritime "finders keepers" law, envisioning a huge payoff.

As the crew begins to explore the vast, eerie ship, strange and frightening events start to unfold. They discover a small cache of gold bars, igniting excitement over the fortune that might be hidden on board. However, the ship seems to be haunted by the ghosts of its past, revealing glimpses of the tragic and horrific events that led to its mysterious disappearance. The salvage team must then confront the increasingly malevolent forces at play, which threaten not just their fortune but their very lives, as they delve deeper into the ship's dark history and the sinister secrets it harbors.