00.30 — 02.20

Introduction. The mystery of a Royal Marine who disappeared after an evening’s drinking in a club on the Falkland Islands. Foul play was suspected; four local men were arrested but never charged. The Marine’s body has never been found.

02.20 — 07.20

The Forensic Science Advisory Group (FSAG), set up in the UK in 1988 with a multi-disciplinary composition: forensic scientists, archaeologists, geophysicists, police dog handlers and their dogs. The use of buried pig carcasses to train police body-search dogs.

07.20 — 18.40

Interviews with three of the four men originally arrested. The FSAG arrive in the Falklands and set out to look at likely areas where the Marine’s body might be. The mystery of why the ship that had brought the Marine to the village left without him, without an alarm being raised.

18.40 — 26.20

The FSAG use ground-penetrating radar and a sniffer dog to search for ground disturbances and decomposing remains.

26.20 — 32.10

The 1980 Naval Board of Inquiry. The evidence it heard. The vital witness who died in unexplained circumstances before he could give evidence. The unsatisfactory conclusion of the inquiry.

32.10 — 38.10

The FSAG continue to search, with no success. The Marine’s mother talks to a witness who was in the bar on the night her son disappeared. Even under hypnosis, the witness fails to provide any new information.

38.10 — end

The FSAG follow up on rumours and new witnesses, but their trip to the Falklands turns out to be entirely in vain. The disappearance of the Marine remains a mystery.