S4 E1 • Hitler's War Trains

The railways were the lifeblood of the Nazi empire. It was a vast network that spread Nazi ambition and control across Europe and beyond. Through use of drama, documentary and archive the programme reveals Hitler's personal train, unseen bunkers, massive depots, railway weapons and record-breaking engines that made up what was arguably the Nazis biggest ever megastructure: the railways.

S4 E2 • Railways of Death

The rail networks most sinister function was to facilitate the Final Solution. Hitler and the mastermind of the Holocaust, Himmler, used the vast rail network to transport Jews to concentration camps and to their death. But the wider war effort was dwindling and in 1945 in Berlin, Hitler finally abandoned his beloved train and made a dash for his underground bunker - the place that would eventually become his tomb.

S4 E3 • Hitler's Italian Fortress

The story of one of the Nazis' toughest structures. These defensive lines spanned the Italian peninsula, stalling the Allies for almost two years.

S4 E4 • Hitler's Artic Fortress

It's one of the most daring and bold operations of WW2: The Nazi's occupation and fortification of Norway. Hitler demands breath-taking defences along the country's 1500 mile coastline to prevent an Allied invasion. It includes some of the biggest gun batteries of the entire war. Norway is an Arctic frontline from which the Nazis can attack the Soviet Union, but it also offers Hitler the possible means to make an atomic bomb.

S4 E5 • Hitler's Propaganda Machine

During the brutal Battle of Berlin in 1945, 100,000 German civilians fight to the death and 6,000 commit suicide. How did the Nazis motivate ordinary civilians to fight even when defeat was inevitable? The answer is propaganda, and in Dr Josef Goebbels, Adolf Hitler found a genius of mind-manipulation. This episode reveals the evidence left behind by the Nazi propaganda machine, monuments to the

S4 E6 • Hitler's Luftwaffe

The Luftwaffe, a revolutionary German air force, created from nothing and fast-tracked by Hitler to annihilate the enemy from the skies. From the factory where the deadly Heinkel HE111 bombers were mass-produced, to the Baltic and the ruins of the Luftwaffe's top-secret torpedo test facility to the most technologically advanced jet bomber of World War 2, Nazi Megastructures lifts the lid on Hitler's war from above.