Out hiking, Special Forces Brenner Baker stumbles onto a cartel's compound. Her husband's killed and she's left for dead. The cartel made two mistakes - killing her husband and leaving her alive. They won't live to make another.

A group of young people awake, locked inside a warehouse with cameras screwed into their heads. It becomes apparent that they are unwilling competitors in a deadly game, and they will need to murder each other if they hope to survive.