During a handover to the head of counter-terrorism of MI5, Harry Pearce, a terrorist escapes custody. When Harry disappears soon after, his protégé is tasked with finding out what happened as an impending attack on London looms, and eventually uncovers a deadly conspiracy.

Thriller, Action

Peter Firth, Kit Harington, Elyes Gabel, Jennifer Ehle, Tim McInnerny, Tuppence Middleton