In the 1970s, a member of the IRA takes over an Active Service Unit in London after his wife is accidentally shot dead in Ireland. The unit's mission is to cause chaos and destruction, while his personal aim is to hunt down his wife’s killer — an SAS captain, who is also hunting him.

• Upper Street
• Piecrust Productions
• Colin Morgan
• Aml Ameen
• Mark Strong
• Felicity Jones
• Sophia Brown
• Tom Vaughan-Lawlor
• Will Keen
• Mairéad Tyers