![The Eastern Front](https://image.tmdb.org/t/p/w185/qn36s5wdg0l7bJzYijeQlZRxYkr.jpg)
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.