History Undercover Season 6: Episode Guide & Ratings

During the Holocaust the U.S. government suppresses information regarding the plight of European Jews.

How Max Schmeling risked his life to help two Jewish boys; the different paths Schmeling and Joe Louis took after their heavyweight bouts.

Hitler's deputy, Rudolf Hess, parachuted into a Scottish field with proposals for ending the war, but he was arrested and spent 46 years as a prisoner.

The United States and Israel cover up details of the attack on the USS Liberty off the Sinai Peninsula, possibly by Israeli boats and planes.

Officers and crew who served aboard the Russian destroyer the Sentry recall how the captain seized control of the ship and led his men to mutiny.

Whether members of the 364th Infantry were killed by the U.S. Army for threatening military morale during World War II.

The fight between the Japanese and the Americans in the Aleutian Islands in the Alaskan north during World War II.

Archival film, previously unpublished documents and interviews reveal Heinrich Himmler's double life -- one which involved reaching out to the Allies.

Historian Ian Sayer and a group of amateur treasure hunters embark on a quest to locate the missing Third Reich coffers.

The life of commander in chief of the Japanese Armed Forces Hirohito, including his wartime role from the attack on Pearl Harbor to Japan's surrender.

The World Trade Center bombing in 1993 marks an ominous turning point for international terrorism.

The 1941 Battle for Crete is the first large-scale paratrooper invasion.

Terrorism thrives in the 20th century.

The Doolittle Raiders retaliate for the bombing of Pearl Harbor.

The sinking of M-256 and the Ekranopian, a secret flying ship which carried thousands of soldiers or missiles over great distances.

What may have caused three major commercial airline disasters -- TWA 800, Swissair 111 and Egyptair 990.

Hiroo Onoda reflects on his 1944 mission on the Philippine Island of Lubang in which he carried out guerrilla operations.

How a 12-year-old's school project helped exonerate Charles B. McVay III, the captain of the USS Indianapolis, which sank in 1945.

The Army Rangers landed 30 miles behind enemy lines to attack Cabanatuan and saved survivors of the Bataan Death March.

Near the end of World War II, a U.S. destroyer's capture of a German submarine may have accelerated the decision to drop the atomic bomb.

Terrorism emerges during the French Revolution.

The Marine fighter squadron known as the Black Sheep shot down more than 100 confirmed Japanese planes during their nine months together in the Pacific.

A leading British naval authority of the 1920s writes a book about the possibility of a confrontation between America and Japan.

A chain of explosions among tightly-berthed ships kills 127 servicemen at 1944 Pearl Harbor.

Shadowy figures protect Mussolini and Italy's tenuous Axis relationship with Germany.

Recent history of fighting in Afghanistan.