Recuperating from his past mission, disturbed but driven D.I. Jack Austin returns to work amid a personality clash with a retired colonel - who happens to be his new Chief Constable.

When the Constable is kidnapped - and returned in pieces - DI Austin's hapless hunt for the culprit begins. He investigates a string of cryptic murders including a beheaded minister, a drowned woman in a Hijab, and a band of terrorists with explosives.

Meanwhile, Austin battles a grievous inner conflict. Will he thwart the perpetrator, or become a conspirator himself?