Niles has just returned from eight years of serving his country as a Special Forces sniper. He's looking forward to a consulting job with defence contractor General Dynamics and spending time with his family, including his bi-polar mother, Lorna and his hard-drinking uncle, Willie. What Niles doesn't know is that General Dynamics is actually a front for a CIA-run hit squad. He's not interested in joining them, but they won't take no for an answer.