In a vein similar to Bond movies, a British agent Philip Calvert is on a mission to determine the whereabouts of a ship that disappeared near the coast of Scotland.
Anthony Hopkins
as Philip Calvert
Robert Morley
as Uncle Arthur
Nathalie Delon
as Charlotte
Jack Hawkins
as Sir Anthony Skouras
Corin Redgrave
as Hunslett
Derek Bond
as Lord Charnley
Ferdy Mayne
as Lavorski
Maurice Roëves
as Lt. Williams - Helicopter Pilot
Leon Collins
as Tim Hutchinson
Wendy Allnutt
as Sue Kirkside
Peter Arne
as Capt. Imrie
Oliver MacGreevy
as Quinn
