Thug, the former mob enforcer and ex-boxer who learns he has chronic traumatic encephalopathy (CTE), a neurological condition linked to his violent criminal history is played by Liam Neeson. Having only moments left at his disposal, he tries to recall his daughter Daisy (Frankie Shaw) who is distant and reunite with the son he never met. But redemption is hard-won as the criminal underbelly, headed by mob boss Charlie Conner (Ron Perlman) hangs over him.