A select team of US Army Special Forces Soldiers are sent on a mission to retrieve pieces of a downed spy satellite from a remote desert region 45 miles west of Janos, Mexico. Expecting a routine, even boring mission, the team is soon faced with the loss of half their members, along with their Mexican Federal Police escort, and are forced to beat a hasty retreat to a cantina they passed on the way in. They spend a long night trying to understand what they are up against and how to defeat this apparently undefeatable (and otherworldly) foe.