Mitch (Scott Eastwood), a troubled young man from Texas, leaves his dead-end life to run away to Mexico where he is recruited to join a paramilitary group of teens who fight drug cartels. At their desert camp, The Captain grooms Mitch to be the top soldier in his 'army' which he uses to launch attacks on Mexican drug lords in the name of the FBI, all the while keeping the spoils of the raids to himself. As the raids become bloodier and the Mexican police are closing in, Mitch realises that his only way out is to escape back to America. But can he take the suitcase full of money? Maybe even The Captain's beautiful girlfriend?