Inspired by the real events of the attempted heist at Heathrow Airport in 1952, a criminal tricks an old friend into giving away the location of a shipment of gold bullion so he and his gang can steal it.

Susan Stephen
as Janie Matthews

Jack Watling
as Tom Matthews

Karl Stepanek
as Pliny

Richard Pearson
as Noel

Terence Alexander
as Harry

John Le Mesurier
as Luigi

Ballard Berkeley
as Findley

Genine Graham
as Diana

Trevor Reid
as Watson

John Longden
as Worthington