Secret agent Zak Darke is back for his third mission - and the stakes have never been higher. After an explosion on the tube leaves someone dead, Zak and his team are brought in to try and work out how this terror cell operates - but clues are scarce and they have no idea where, or when, the bomber ...

Secret agent Zak Darke is back for his third mission - and the stakes have never been higher. After an explosion on the tube leaves someone dead, Zak and his team are brought in to try and work out how this terror cell operates - but clues are scarce and they have no idea where, or when, the bomber will strike next.