The Island of Adventure (1981)

Director: Anthony Squire

Four British teens on vacation visit an island and discover that a terrorist group is using it as their headquarters.

Cast

Norman Bowler

Bill Smugs

Wilfrid Brambell

Uncle Jocelyn

Eleanor Summerfield

Aunt Polly

Catherine Schell

Alison Mannering

John Rhys-Davies

Smith

Leon Lissek

Jo

Paul Williamson

M.I.5 Boss

Frank Williams

Map Shop Owner

Peter Forbes-Robertson

Mr. Roy

Julie Neesam

Maggie