1. Only Connect, Part One

7.8

. 4 September 2014. 60 min

DS Sean Stone's manner alienates all those who work with him, but his unorthodox methods could hold the key to finding a missing girl.

2. Only Connect, Part Two

8.5

. 11 September 2014. 60 min

The search for Taylor Davis takes an unexpected turn. Sean is forced to question his methods - and faces a shocking surprise.

3. Off Radar, Part One

8.8

. 18 September 2014. 60 min

Sean is convinced he has found the third victim of convicted killer Leonard Vance. He gets a confession but Vance is unable to locate the body.

4. Off Radar, Part Two

8.8

. 25 September 2014. 60 min

Sean uncovers inconsistencies in Vance's confession and realises that Vance is just another victim - the real killer is still on the loose.