

18/11/1966
A 12-year-old orphan who has just inherited a fortune is trapped on an island with his uncle, a former British intelligence commander who intends to kill him. A young girl is the boy's only ally against the sarcastic uncle, who uses hypnotism, a pool of sharks, fire, and poisonous mushrooms as weapons.

Nigel Green
as Major Kevin Harrison

Mary Badham
as Chrissie

Pat Cardi
as Barnaby Harrison

Robert Pickering
as Travis

Linda Lawson
as Justine

Ref Sanchez
as Ketchman

Nestor Paiva
as Steward

William Castle
as Russell Harrison (in car wreck) (uncredited)
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