Lord Turner and Mel Doyle are running a covert department that is deniable by the UK government. If they are caught they will be disowned and their careers ended in disgrace. The department is known only as SF02 and the operators have a license to kill. A terrorist cell is operating out of London and have set off bombs in the London Underground system. Doyle is tasked with finding them and killing them. He is judge, jury and executioner. The problem is there is another plot to kill members of parliament and Lord Turner's name is on the list. Doyle needs to find the terrorists in this cell before they get Turner. But that could compromise the other operation. They have to decide which one takes priority before it is too late.