The American plane was shot down by guerrillas in South America. The surviving crew is in captivity. The US Central Intelligence Agency is throwing its best forces to free American subjects.

The elite group of special forces, led by Dutch, was abandoned in the South American jungle. The operation went according to plan until they came across a glade with torn bodies, which it was not possible to identify. Only by scraps of uniforms it became clear that this is the crew of the downed aircraft.

Realizing that the operation failed, Dutch orders to move to the point of evacuation. On the way it becomes clear that something invisible, merging with the forest, hunts them. Hunts, methodically killing one after another, taking away a terrible trophy - a skull with a spine.