TV Guide American Heroes Channel Monday

Experts discuss how Hitler was able to keep a city hidden from the Allies during World War II that wasn't discovered until the Nazis were pushed out of Poland.

Experts investigate new discoveries on a strange fortified island that reveal the terrifying truth behind Hitler's secret plan to win World War II at all costs.

Experts explore a strange, abandoned mansion on a remote island that's central to countless conspiracy theories involving Nazi missions.

Experts discover that an abandoned eerie structure in France could have doomed the Allies in World War II, and new discoveries reveal the truth.

American forces are discussed in relation to the invention of new wartime tactics, which resulted from attacks that turned the tide of WWII in the Pacific.

Grandiose parades, soaring speeches and passionate radio announcements from the Second World War are uncovered by military historians.

John D. Rockefeller, the King of Kerosene, and Thomas A. Scott, the power behind the Pennsylvania Railroad Co., battle to control the emerging oil industry.

In the late 1800s, an emerging electrical industry begins to take shape, as the two greatest intellects of the day take opposing views on how to provide power.

The relationship between Andrew Carnegie and Henry Clay Frick, which began as a determined partnership and ended in violence, is examined.

In the late 1890s, famed publishing magnate William Randolph Hearst challenges the undisputed king of newspaper publishing Joseph Pulitzer in a high-stakes war.

A mariner saves 9,000 soldiers; a double agent helps Washington score a victory; a teenage girl rides to the rescue; a sharpshooter turns the tides of war.

A mother of eight battles loyalists singlehanded; a woman attempts a daring rescue of American POWs in Brooklyn; a supersized soldier becomes a legend.

A German terrorist cell operating in America is uncovered by a New York City policeman, who must fight to save his country before time runs out.

Famed private investigator is hired to protect a railroad, but as his investigation progresses, he uncovers an assassination plot against Lincoln.

As the first Italian-American police detective in New York's Little Italy, Joe Petrosino is filled with a resolve to do what it takes to protect his people.

The celebrated FBI lawman was charged with heading a massive manhunt to capture the most dangerous men in America during the Great Depression.

In the Everglades, Sheriff Bob Baker commits to putting an end to one of the most notorious and deadly gangs in the history of Florida.

In an infamous Texas outpost, lawlessness is the rule, leaving it up to the fabled lawman and Confederate veteran Dallas Stoudenmire to tame the town.

Infamous outlaw masterminded over 30 bank robberies and perhaps up to 20 murders, becoming "Public Enemy #1" following the death of John Dillinger.

A career criminal, beginning early in a Chicago street gang, is nicknamed "Baby Face" by his associates, as he appeared to be younger than his actual age.

One of the longest-lived criminal gangs in operation during the Depression Era, which was founded by Fred Barker and Alvin Karpis, is examined.

British gangsters and twin brothers Ronnie and Reggie Kray ruled the world of organized crime in the East End of London during the 1950s and 60s.

A look is taken at an English crime gang that was based in South London, England during the 1960s and had a reputation as London's most sadistic gangsters.

Two of the most famous outlaws in history, operating as murderers, bank robbers and hold-up artists during the course of their spree.

One of the longest-lived criminal gangs in operation during the Depression Era, which was founded by Fred Barker and Alvin Karpis, is examined.

British gangsters and twin brothers Ronnie and Reggie Kray ruled the world of organized crime in the East End of London during the 1950s and 60s.

A look is taken at an English crime gang that was based in South London, England during the 1960s and had a reputation as London's most sadistic gangsters.

Two of the most famous outlaws in history, operating as murderers, bank robbers and hold-up artists during the course of their spree.

Infamous outlaw masterminded over 30 bank robberies and perhaps up to 20 murders, becoming "Public Enemy #1" following the death of John Dillinger.

A career criminal, beginning early in a Chicago street gang, is nicknamed "Baby Face" by his associates, as he appeared to be younger than his actual age.