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 truly tested when he is asked to kill for the first time.
Cosmo Jarvis
Barry Keoghan
Niamh Algar
Ned Dennehy
David Wilmot
Simone Kirby
Anthony Welsh
Roisin O'Neill
Hazel Doupe
Toni O'Rourke
Liam Carney
Ryan McParland
Ally Ní Chiárain
Kiljan Moroney
Brian Doherty
Rory Quinn
Peter Newington
Brid Brennan
Barry Keane
Lee Byford
Peggy-Anne Knight
Christopher Livingstone
Stephen McDade
Stephen McGowan
John Paul O'Driscoll