Top level CIA agent Avery Graves is blackmailed by terrorists into betraying her own country to save her kidnapped husband. Cut off from her team, she turns to her underworld contacts to survive and help locate the coveted intelligence that the kidnappers want.

When a retired Green Beret soldier is murdered by an Albanian drug gang in London, four of his veteran SAS comrades set out to avenge him, dispensing their own brand of justice on the streets of London.