Season 4
Episode 1 - THE SPECIAL - PART I

The team is at Danny's funeral when a bomb explodes in a London street market resulting in massive casualties. The group responsible is Shining Dawn, an international terror group whose members believe they must wipe out human beings in order to save the earth. Shining Dawn's only demand is the release of their leader - until that happens, bombs will detonate every ten hours in central London. A waitress becomes caught up in the MI5 operation when she unwittingly becomes the only person able to ID the bomb maker. The team is making good progress until a second key witness dies before the team can interrogate them. Adam realizes there's a mole on the Grid but with Zaf kidnapped and the next bomb still ticking down, they don't have time to find out who it is.