Sherlock Holmes and Doctor Watson must protect a Swiss inventor of an advanced bomb sight from falling into German hands.

CAST: BASIL RATHBONE, NIGEL BRUCE, LIONEL ATWILL, KAAREN VERNE, WILLIAM POST JR.,DENNIS HOEY, HOLMES HERBERT, MARY GORDON, RUDOLPH ANDERS, TED BILLINGS, VEDA ANN BORG, PAUL BRYAR, JOHN BURTON, VICKI CAMPBELL, GERARD CAVIN, HARRY CORDING, JAMES CRAVEN, HAROLD DE BECKER, JACK DEERY, LESLIE DENISON, GEORGE ELDREDGE, PAUL FIX, LEYLAND HODGSON, COLIN KENNY, GUY KINGSFORD, GEORGE BURR MACANNAN, MICHAEL MARK, RAY SPIKER, HENRY VICTOR, HARRY WOODS
DIRECTOR: ROY WILLIAM NEILL
DURATION: 80 MINS