All 15 episodes from the first three series of the BBC crime drama in which a murder squad investigate complex cases in London. One of the detectives, however, DI David Bradford (Hugo Speer), takes the investigations more seriously when his own wife suddenly disappears. Series 1 episodes are: 'The Politician's Son', 'Stag Night', 'Blood Lines', 'Sex Games' and 'Connected'. Series 2 episodes are: 'The Dark', 'The Ultimate Price', 'Family Affairs', 'Turf War' and 'Capture'. Series 3 episodes are: 'Grace', 'Cyber Bully', 'Blood', 'Control Freak' and 'Crossing the Line'.