[Flying G Men Serial was deleted from YouTube]
Flying G Men (1939) - Robert Paige - 15 Chapter Columbia Movie Serial.
Four government aviators, the "Flying G-Men" of the title fight to protect the US and its allies from an enemy spy ring. These Four flying G-Men, Hal Andrews (Robert Paige), Bart Davis, John Cummings and Charles Bronson, are assigned to the crisis. The four agree that one of them shall assume a mysterious identity so he can strike with the swiftness of a falcon...and the result is The Black Falcon (Robert Paige). The Falcon has a black leather flying outfit.
NOTE: Contains Portuguese Sub-Titles. Serial is in English. Portuguese Title is "O Falcão Mascarado" (The Masked Falcon)