Description：A U.S. military pilot disappeared in the primeval forest of South America, where unfriendly local guerrillas were entrenched. Major Dutch (Arnold Schwarzenegger) of the U.S. special forces led his men to search for the missing pilot in person. They soon found the body of the missing pilot in the forest, and his death was horrific. Everyone thought that it was done by the local guerrillas, and the angry team members began to look for the base of the local guerrillas to avenge their companions. However, when they found the camp of the local guerrillas, they found that the locals were also shrouded in an atmosphere of terror. Subsequently, the team members were attacked and killed one after another, but each time they did not find any shadow of the enemy. It was as if the opponent had disappeared out of thin air. Dutch, who was alone, was determined to face this mysterious and terrifying force with his own strength.