Season 2

1. You Killed Toby Wren

1970-12-14 · 50m

Quist's authority is questioned from all directions, and Ridge does some quiet investigations into hybrid science in Norwich.

2. Invasion

1970-12-21 · 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.

3. The Islanders

1971-01-04 · 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.

4. No Room for Error

1971-01-11 · 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.

5. By the Pricking of My Thumbs...

1971-01-18 · 50m

The Doomwatch team investigates the myth about the XYY chromosome after a schoolboy is expelled for possessing it.

6. The Iron Doctor

1971-01-25 · 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.

7. Flight into Yesterday

1971-02-01 · 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?

8. The Web of Fear

1971-02-08 · 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.

9. In the Dark

1971-02-15 · 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.

10. The Human Time Bomb

1971-02-22 · 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.

11. The Inquest

1971-03-01 · 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.

12. The Logicians

1971-03-15 · 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?

13. Public Enemy

1971-03-22 · 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.