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.

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

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.

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?

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.