E1 - Episode 1: Part 1

Aired: October 28, 2016

DCI Tom Mathias and DI Mared Rhys are confronted by a family in grief and a community in shock when they investigate the violent death of a local minister.

E2 - Episode 1: Part 2

Aired: November 06, 2016

As the investigation into the murder of a local minister continues, the net tightens around the minister's daughter. And as the case is brought to a shattering close, Chief Superintendent Prosser is forced to confront an old foe.

E3 - Episode 2: Part 1

Aired: November 13, 2016

Laura Dean, a curator, is discovered in a shallow grave in remote woodland. Mathias and his team must delve into the young victim's life to unearth some shocking secrets. Meanwhile, Prosser - still reeling from the death of Iwan Thomas - calls on the help of retired Chief Inspector Robert Owen.

E4 - Episode 2: Part 2

Aired: November 20, 2016

With time running out, Mathias must solve the mystery of Laura Dean's death whilst trying not to get distracted by his personal problems.

E5 - Episode 3: Part 1

Aired: November 27, 2016

A local man is the chief suspect in a fatal shooting at a remote petrol station. Tensions escalate when the suspect's young son disappears.

E6 - Episode 3: Part 2

Aired: December 04, 2016

Desperate to find a missing boy and his killer father, DCI Mathias breaks protocol and sets off into the mountains alone. With the clock ticking, Mathias puts his life on the line.

E7 - Episode 4: Part 1

Aired: December 11, 2016

The past comes back to haunt DCI Mathias as he investigates the death of convicted killer Catrin John - could her death be linked to that of Iwan Thomas's?

E8 - Episode 4: Part 2

Aired: December 18, 2016

The past comes back to haunt DCI Mathias as he investigates the death of convicted killer Catrin John - could her death be linked to that of Iwan Thomas's?