Story of how a group of incorruptible federal lawmen helped put 1920s' Chicago gangster Al Capone in prison.

G-men grab a gangster and a governor thanks to a clerk in the fingerprints division.

The actions of various criminals such as Dillinger, Pretty Boy Floyd, Bonnie and Clyde and Baby Face Nelson are reenacted in this film.

G-Men in Washington break up a powerful spy ring and capture the ringleaders.

He battled the Kennedys and Martin Luther King, encouraged McCarthy and single-handedly changed the course of history. Hired by F.D.R. to be the director of the FBI, Hoover erected the most sophisticated investigatory agency in the world.

Having paid for the education and legal training of his younger brother, Bruce, with the idea that he would become a lawyer and join his business, Frederick Garth, a racketeer posing as an honest businessman, is dismayed when he learns that Bruce has become a G-Man instead.

By a daring ruse and inside help, Pete Rennick, a noted criminal behind bars on federal charges, escapes from the prison, and all of the law-agencies and local police are out to catch him with roadblocks and every car searched, but the escapee gets away. Bill Hasford, a private detective, investigating a racket finds it leads to the wanted man, and has the biggest adventure of his career.