Principal Protection Officer David Budd has made a major breakthrough in the investigation into the attack on the home secretary, but his enquiries have put him in mortal danger. With…

While the police question Mike, Daisy makes a confession to Thomas. Adam’s search for clues about Corinne leads him to another victim of the stranger.

The stranger strikes again — this time, with a blackmail ploy. Corinne won’t return Adam’s calls. The kids scramble to cover their tracks.