An elite special forces unit, led by the experienced Dutch and his CIA contact Dillon, arrives in a Central American jungle via helicopter. They successfully wipe out a guerrilla camp, except for one woman, but they are unable to find the political captives that Dutch was ordered to rescue. He realizes that the mission was only a cover-up to manipulate him into committing a massacre. As tensions rise between Dutch and Dillon, a wild card appears, a 7-foot alien that is able to blend into the jungle, and turns the tables on the warriors.