The Master Key
The Master Key
Overview
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
Similar
The Secret of the Submarine (1915)
Stingaree (1915)
The Further Adventures of Stingaree (1917)
The Valley of Vanishing Men (1942)
The Power God (1925)
The Desert Hawk (1944)
Federal Operator 99 (1945)
Hawk of the Wilderness (1938)
Daredevils of the Red Circle (1939)
Custer's Last Stand (1936)
Jungle Raiders (1945)
The Masked Marvel (1943)
Congo Bill (1948)
The Purple Domino (1917)
The Black Coin (1936)
Jungle Menace (1937)
The Mysterious Pilot (1937)
Flying G-Men (1939)
The Spider's Web (1938)
Mandrake the Magician (1939)
