In darkest rural Ireland, ex-boxer Douglas 'Arm' Armstrong has become the feared enforcer for the drug-dealing Devers family, whilst also trying to be a good father to his autistic five-year-old son, Jack. Torn between these two families, Arm's loyalties are … Cosmo Jarvis, Barry Keoghan, Niamh Algar, Ned Dennehy, David Wilmot, Simone Kirby, Anthony Welsh Added on Amazon Prime 2023-09-05. Youtube Trailer