West Belfast, 1972. The government has lost control. The streets of Northern Ireland are on fire, with violence escalating on both sides. Lance Corporal Owen Twill is snatched up by the IRA and held captive for ten days. On his release he leaves the army and returns to England, a broken and bitter man, obsessed with visiting revenge on the Provo commander responsible for his injuries. It's 2016, and one by one, members of Owen Twill's old unit are dying in suspicious circumstances. When he learns the dark secret behind his betrayal, a chain of events is set in motion, the aftermath of which is felt from Belfast to New York City. As he tracks down former colleagues, he uncovers a powerful cabal with tentacles that reach to the corridors of Westminster. A conspiracy that pitches friend against friend in a battle to be the last man standing.