The footage from the Pennines Five case pushes Harry over the edge. Halvorson arrives in London with an unwelcome surprise for Steinar.

Cast: Sorcha Groundsell, Percelle Ascott, Guy Pearce, Jóhannes Haukur Jóhannesson, Laura Birn, Katie Clarkson-Hill, Olivia Fearn, Abigail Hardingham, Sam Hazeldine, Arthur Hughes, Gjevat Kelmendi, Nadine Marshall, Lise Risom Olsen, Sergej Onopko, Ben Rose