Having agreed to take care of the hunted and wounded Marat, Sam and Phil return back to Phil's house where his mum Linda proves surprisingly resourceful. With spies shadowing their every move, our heroes inadvertently bring the dangerous plot right to their doorsteps and ultimately, to the council offices. By arranging to hand over Marat to the care of MI5, they think they can wash their hands of their troubles. Yet the duplicitous Agent Smoke has other plans and just as our two unlikely heroes start to figure out what is afoot, they become high-value fugitives.