S01:E01 - Episode 1
On his first day in his new job in Aberystwyth, DCI Tom Mathias investigates a suspicious disappearance.
S01:E02 - Episode 2
The subsequent investigation leads Mathias to investigate former residents of a children's home.
S01:E03 - Episode 3
DCI Mathias investigates the murder of 69-year-old Idris Williams, found bludgeoned to death in his farmhouse.
S01:E04 - Episode 4
As the investigation progresses, the family histories of local farmhands reveal more suspects.
S01:E05 - Episode 5
In an isolated hamlet, the body of a young laborer is found in the murky depths of a quarry lake.
S01:E06 - Episode 6
When the body of a second victim is found in a nearby garage, Mathias goes against the advice of Prosser.
S01:E07 - Episode 7
The body of a young woman is found in the Borth marshes. Suspicion points towards an ex-boyfriend.
S01:E08 - Episode 8
After Mathias discovers a plot to murder a second victim, he becomes determined to catch the culprit.