Vengeance

Turner and Doyle are running a top-secret department within the UK government called SF20. Their remit to take down enemies of the state. If caught they will be disowned as they are deniable. There is a terrorist cell operating in London. They have already exploded bombs on the London Underground. Doyle's job is to find them and take them out. In tracking them down he uncovers a sub-plot to take out members of the Houses of parliament. Lord Turner is on the list. Who will get there first?