FLYING G-MEN {1939)--not yet colorized

IN PROCESS TOCOLORIZE--Flying G-Men is a 15-episode 1939 adventure film Film serial, directed by James W. Horne and Ray Taylor. The serial was the sixth of the 57 serials released by Columbia.[1] Four "Flying G-Men" battle with enemy saboteurs intent on destroying American military defences.[2]
Plot
Three government aviators, Hal Andrews, Bart Davis and John Cummings called the "Flying G-Men", one of whom is disguised as "The Black Falcon", fight to protect the United States and its allies from an enemy spy ring and to avenge the death of the fourth Flying G-Man, Charles Bronson.

Bronson was killed when he attempted to stop enemy agents from stealing the new McKay military aircraft, designed by Billy McKay. The Junior Air Defenders are also enlisted to help the Flying G-Men.

A plot to infiltrate all military factories and airports is discovered but the spy chief called "The Professor" is unknown. Suspecting Marvin Brewster, the owner of Brewster Airport, a local airfield, is The Professor, the G-Men find that he has kidnapped Babs McKay. They follow him to the spy hideout to capture Brewster and rescue Babs.

Chapter titles
Challenge in the Sky
Flight of the Condemned
The Vulture's Nest
The Falcon Strikes
Flight from Death
Phantom of the Sky
Trapped by Radio
The Midnight Watch
Wings of Terror
Flaming Wreckage
While a Nation Sleeps
Sealed Orders
Flame Island
Jaws of Death
The Falcon's Reward
Source:[3]

Cast
Robert Paige as Hal Andrews, Flying G-Man, and "The Black Falcon"
Richard Fiske as Bart Davis, Flying G-Man
James Craig as John Cummings, Flying G-Man
Lorna Gray as Babs McKay [N 1]
Sammy McKim as Billy McKay
Stanley Brown as Charles Bronson, Flying G-Man
Don Beddoe as W. S. Hamilton
Forbes Murray as Marvin Brewster and The Professor, the villainous owner of a local airport
Lee Prather as Simmons
Beatrice Blinn as Brewster's secretary
Ann Doran as Hamilton's secretary
Dick Curtis as Korman, a henchman
Eddie Laughton as Hall, a henchman
John Tyrrell as Williams
Eddie Fetherston as Borden, a geologist