When young reporter and amateur biker Jerry Marsh investigates a mysterious hooded figure on a motorbike, he discovers crooks hiding out in a ruined castle with atomic sabotage on their minds...

Rating: 6.2

Cast:

Peter

Swanwick

Sarah

Davies

John

Pike

Anne

Gilleno

John

Baker

Jimmy

Hanley

Rona

Anderson

Leslie

Dwyer

Lionel

Jeffries

Kenneth

Connor

Beatrice

Varley

Michael

Golden

Valerie

Hanson

Vincent

Ball

Edwin

Richfield

Robert

Rietti

James

Raglan

Frank

Atkinson

Edie

Martin

Peter

Swanwick

Sarah

Davies

John

Pike

Anne

Gilleno

John

Baker

Jimmy

Hanley

Rona

Anderson

Leslie

Dwyer

Lionel

Jeffries

Kenneth

Connor