Newly returned to Pembrokeshire, Detective Superintendent Steve Wilkins looks into a brutal double murder which was never solved. Known locally as the Coastal Path murders, he is shocked to discover links to two other notorious unsolved crimes.

Cast: Luke Evans, Keith Allen, Caroline Berry, Oliver Ryan, Alexandria Riley, Charles Dale, David Fynn, Steve Meo, Richard Corgan, Kyle Lima, William Thomas, Suzanne Packer, Rhodri Evan, Roger Evans, Steffan Cennydd