E1 - You Killed Toby Wren
!Dec 14, 1970 - 50m
Quist's authority is questioned from all directions, and Ridge does some quiet investigations into hybrid science in Norwich.
E2 - Invasion
!Dec 21, 1970 - 50m
Ridge and Hardcastle are sent on what seems a simple enough assignment, but stumble onto a major government cover up in an abandoned English manor.
E3 - The Islanders
!Jan 4, 1971 - 50m
Doomwatch become involved with the inhabitants of a small, secluded island who have been forced to leave for the English mainland and are struggling to survive.
E4 - No Room for Error
!Jan 11, 1971 - 50m
A deadly new strain of typhoid is sweeping through local schools. There is a treatment, though, and the team at Doomwatch endorse this in spite of its side effects.
E5 - By the Pricking of My Thumbs...
!Jan 18, 1971 - 50m
The Doomwatch team investigates the myth about the XYY chromosome after a schoolboy is expelled for possessing it.
E6 - The Iron Doctor
!Jan 25, 1971 - 50m
A computer oversees the wellbeing of patients at a local hospital. The Doomwatch team look into whether it is saving patients or if something more sinister is afoot.
E7 - Flight into Yesterday
!Feb 1, 1971 - 50m
After a long-haul flight Dr Quist's reputation is put seriously in doubt when he arrives drunk to a meeting with the Prime Minister. Is it a simple case of jet-lag, or sabotage?
E8 - The Web of Fear
!Feb 8, 1971 - 50m
The Doomwatch team investigate the mysterious outbreak of a deadly subtropical disease which somehow has cropped up on an isolated island off the coast of the UK.
E9 - In the Dark
!Feb 15, 1971 - 50m
The death of a young man off the Scottish coast leads to the Doomwatch team investigating a cover up in the case of a sunken ship, and the discovery of a revolutionary life-changing science.
E10 - The Human Time Bomb
!Feb 22, 1971 - 50m
The government wants direction for the possible construction of more high-rise apartment buildings. Fay Chantry is asked to live in one and supply a report based on her experiences.
E11 - The Inquest
!Mar 1, 1971 - 50m
An inquest is held into the death of a local girl from rabies. How was she infected? A local woman thinks she knows, and she doesn't believe dogs are involved.
E12 - The Logicians
!Mar 15, 1971 - 50m
A powerful antidote formula has been stolen near a school full of gifted boys. Are they responsible, and is computer technology somehow to blame?
E13 - Public Enemy
!Mar 22, 1971 - 50m
A young boy dies while attempting to retrieve a ball from a high roof, but the cause of his death is not from falling. Doomwatch investigate.
