thumb image

Watch world-class TV from Britain and beyond

Always available, always advert free

Start Your Free Trial

Episode 3: Possessing what they believe to be the killer's genetic "fingerprint," David and Alec initiate the world's first "DNA manhunt." But as thousands of samples are tested and costs continue to rise, David worries the operation will be shut down before they can find the killer.

Starring: David Threlfall, John Simm.
US TV RATING: TV-14