Episode Overview
Zaf goes deep undercover to infiltrate an Al-Qaeda cell that is planning an attack on the UK. When Adam learns that the terrorists are on a suicide mission he tries to prevent them from reaching their target, but events soon spiral out of control.
Guest Stars
Nicola Walker
Ruth Evershed
Larry Lamb
Iain Kallis
Gugu Mbatha-Raw
Jenny
Aaron Neil
Ibraham
Adhir Kalyan
Samir
Joanna Horton
Leigh Bennett
Peter Barrett
MI5 Officer