In September 1939, Germany invades Poland, setting the stage for the most destructive war in history.

After toppling the Netherlands and Belgium, Nazi Germany pushes further west. The Allies scramble to support France as Churchill is forced to defend Britain from the skies and FDR rushes to mobilize wartime production.

The story of Operation Barbarossa, Hitler's massive surprise invasion of the Soviet Union in 1941, the largest and costliest land offensive in human history.

Exploring WWII from Germany's invasion of Poland through the atomic age and examining pivotal battles, wartime leaders like Churchill and Roosevelt and the human cost of total war.

Exploring WWII from Germany's invasion of Poland through the atomic age and examining pivotal battles, wartime leaders like Churchill and Roosevelt and the human cost of total war.

United States Marines are given the bloody task of stopping a relentless advance.

Hitler's hateful rhetoric leads to anti-Jewish persecution and ultimately, genocide.

Thousands of inexperienced U.S. troops face off against the hardened German Afrika Korps.

Behind the fierce frontline clashes of WWII, a hidden battle rages - one of espionage, deception, and codebreaking. In rural England, a group of brilliant academics work to crack Germany's unbreakable Enigma Code and change the course of the war.

Operation Blue: the German Army fights to take Soviet oil fields and the city of Stalingrad, becoming one of the deadliest battles ever fought and a major turning point on the Eastern Front.

The Allies hope to quickly penetrate the Nazi Reich via Italy but endure a months-long slog.

Allied air forces engage in a fierce and costly battle with the Luftwaffe over the skies of Europe.

The Allies launch Operation Overlord to liberate occupied France and open a true second front.

The Allies and Japan clash in the jungles and plains of Asia, the forgotten theater of World War II.

As the tide begins to turn against the Axis powers, Germany and Japan deploy opposite strategies.

Resistance to Nazi occupation and oppression is a constant throughout the war.

The Pacific campaign reaches a brutal and bloody fever pitch from 1944 to 1945.

The war in Europe reaches a climax as Allied armies advance towards Berlin, and Hitler orders his people to fight to the last man.

The most terrible weapon ever created will change the course of the war in the Pacific.

The end of WWII and the dawn of the nuclear age see two victors turn from allies into adversaries.