Patrick McCann, an Irish terrorist, promises Tom information on a planned attack on a nuclear power station. But there's a catch - MI5 must allow McCann's group to go unwatched for 30 hours. Show less
Discover 11,128,835 listings and 281,703 playable programmes from the BBC
Patrick McCann, an Irish terrorist, promises Tom information on a planned attack on a nuclear power station. But there's a catch - MI5 must allow McCann's group to go unwatched for 30 hours. Show less