The team reinvestigates the unsolved murder of 23-year-old Maureen Mulcahy of Port Talbot. After a major breakthrough, the team identifies a new prime suspect.

Six-year-old Carol Ann Stephens was abducted and murdered in 1959. Her killer was never caught. The Dark Land team comes across new evidence that could finally put this case to rest.

Muriel Drinkwater was brutally murdered near her home in 1946. The team finds a vital new clue that could be the missing piece of this tragic puzzle.

The team attempts to use comparative forensic analysis to solve the gruesome Brighton Trunk Murder, drawing on what they already know about the death of Mamie Stuart in 1919.

In 1939, four-year-old Joyce Cox vanished whilst on her way home. Her killer has never been caught. Can the Dark Land team help her family to solve an eight-decades-old mystery?

The Dark Land team revisit the case of Karen Price, a 15-year-old girl who disappeared after running away from care.

In 1991, the dismembered body of a murdered man began appearing in bags dumped across Gwent. The victim was 25-year-old Clive Tully. The Dark Land team reinvestigate.

When Danny Dyke went missing, the rumour was that he had been murdered, but where was his body?

Re-examining the murder of Suzanne Greenhill, a 20-year-old deaf woman from Newport. Detectives had to work closely with the deaf community to uncover her killer.

In 1972, two men from Blaenavon were brutally murdered, and the murderer was never found. The Dark Land team re-examines the case.