chunk: They soon discover the wreckage of another chopper and three skinned corpses, whom Dutch identifies as U.S. Army Special Forces he once trained. Pressing on, the team reaches the insurgent camp and kills every single guerilla, including a Soviet intelligence officer searching through top-secret CIA documents. Dillon, confronted by a suspicious Dutch, admits the mission was a setup to retrieve intelligence from captured operatives and that the dead unit disappeared weeks earlier in a failed rescue. Upon capturing a female guerilla named Anna, the group proceeds to extraction, unaware that they are being stalked by a nearly invisible creature who tracks them with thermal imaging.