Detective Sexton Blake takes on Nazi spies while solving a series of crimes.
David Farrar
as Sexton Blake
Dennis Price
as Dick Warren
Pamela Stirling
as Stella Duncan
Julien Mitchell
as James Duncan (as Julian Mitchell)
Cyril Smith
as P.C. Morgan
Ferdy Mayne
as Paul Dacier
Dennis Arundell
as Phillip Rainsford
Johnnie Schofield
as Purvis
Paul Croft
as Marat
Kynaston Reeves
as Beales
Desmond Roberts
as Cotter
Danny Green
as Carl
