A U.S. military pilot has disappeared in the primeval forest of South America, where unfriendly local guerrillas are stationed. Arnold Schwarzenegger, a junior professor of the U.S. Special Forces, led his troops to the search and rescue in person. They soon found the body of the missing pilot in the forest, and the death looked horrific. Everyone thought it was the work of the local guerrillas, and the angry team members began to look for the local guerrilla base to avenge their comrades. However, when they discovered the local guerrilla camp, they found that the local people were also shrouded in an atmosphere of terror. Subsequently, the team members were attacked and killed one after another, but no shadow of the enemy was found. It was as if the other party had disappeared into thin air. Alone, Dach was determined to face this mysterious and terrifying force with his own strength...