
Plot
When the TARDIS malfunctions, it and its travellers land on Earth at the size of insects. They uncover a murderous plot involving a new insecticide, but how can they stop the crime in their miniaturised condition?
Trailer
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Cast

William Hartnell
The Doctor

Carole Ann Ford
Susan Foreman

Jacqueline Hill
Barbara Wright

William Russell
Ian Chesterton

Alan Tilvern
Forester

Frank Crawshaw
Farrow

Reginald Barratt
Smithers

Rosemary Johnson
Hilda

Fred Ferris
Bert