Ever since the death of his wife, Lina, in a Kabul bombing, Aubrey Savage has been determined to fulfil his promise to her: to find out what happened to her brother, Jarrah, a disavowed MI5 agent who has been missing for two years.

An ex-SAS officer, Savage is used to noticing the small things. So when he offers a lift to a terrified runaway bride on the moors, he knows there's more to her story than meets the eye.

But when she is snatched away immediately, leaving behind a holdall and a Glock that he recognises to be that of an MI5 agent, he is thrust into a deadly world of corruption, and a threat that's all too close to home...