When Alex (Liam Neeson), an expert assassin, refuses to complete a job for a dangerous criminal organization, he becomes a target himself. FBI agents and Mexican intelligence are brought in to investigate the trail of bodies, leading them closer to Alex. With the crime syndicate and FBI in hot pursuit, Alex has the skills to stay ahead, except for one thing: he is struggling with severe memory loss, affecting his every move. Alex must constantly question his actions and whom to trust.