A small group of vacationers on a boat trip finds themselves stranded after their vessel is damaged by an unseen underwater object. The group, which includes the boat's captain and a pair of tourists, makes their way to a seemingly deserted island, hoping to find help. As they explore the abandoned buildings and dense jungle, they come across eerie remnants of a dark past. They soon discover that the island was once used for secret military experiments during World War II, where Nazi scientists created a battalion of undead super-soldiers. These reanimated soldiers were designed to be invincible and devoid of fear or pain.

As night falls, the survivors realize they are not alone. The undead soldiers begin to emerge from the water and jungle, methodically hunting down the intruders. The captain discovers an old journal chronicling the horrors that took place on the island and the uncontrollable threat posed by these zombie-like soldiers. With limited resources and no means of escape, the group must rely on their wits and courage to survive the relentless onslaught. As tensions rise and hope dwindles, the boundaries between life and death blur, leading to a harrowing fight for survival against an unstoppable force.