The Master Key
"13 Chapters of Terrific Thrills!"
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
Similar
5.2
The Hurricane Express
1932
5.0
Radar Patrol vs. Spy King
1949
4.9
The Black Widow
1947
6.0
Canadian Mounties vs. Atomic Invaders
1953
6.0
Dangers of the Canadian Mounted
1948
N/A
Federal Agents vs. Underworld, Inc.
1949
6.0
Government Agents vs Phantom Legion
1951
N/A
Pirate Gold
1920
5.2
King of the Rocket Men
1949
N/A
Daredevils of the West
1943
N/A
Trader Tom of the China Seas
1954
5.7
The Perils of Pauline
1914
6.0
Jungle Drums of Africa
1953
3.2
King of the Wild
1931
N/A
The Fatal Ring
1917
N/A
Go Get 'Em Hutch
1922
N/A
Elmo the Fearless
1920
6.6
The House of Hate
1918
8.0
Rustlers of Red Dog
1935
N/A
Perils of Nyoka
1942