MI-5: The Greater Good - DVD

When charismatic terrorist Adem Qasim escapes from MI5 custody during a routine handover, legendary Head of Counter-terrorism Harry Pearce (Peter Firth) is blamed for his disappearance. It comes as no surprise when the disgraced Harry, who was forced to resign, jumps from a bridge into the Thames one night.
With MI5 on its knees in the wake of the Qasim debacle and facing a controversial reform, former agent Will Holloway (Kit Harington) is recalled from Moscow, only to uncover a shocking truth – Harry is still alive. The discredited chief has broken all the rules and now he needs Will's help. As Qasim prepares his devastating attack on MI5's London headquarters, Will must decide whether to report Harry or risk everything by trusting him. After all, the corrupt, dangerous spymaster has betrayed him once before.