After terrorist Adem Qasim escapes MI5 custody, counter-terror chief Harry Pearce (Peter Firth) is blamed, disgraced, and vanishes. With MI5 in crisis, former agent Will Holloway (Kit Harington) is drawn back in and uncovers the truth: Harry is alive, rogue, and needs his help - forcing Will to choose between duty and trust.
After terrorist Adem Qasim escapes MI5 custody, counter-terror chief Harry Pearce (Peter Firth) is blamed, disgraced, and vanishes. With MI5 in crisis, former agent Will Holloway (Kit Harington) is drawn back in and uncovers the truth: Harry is alive, rogue, and needs his help - forcing Will to choose between duty and trust.