In early 1918, the Germans launch a mighty attack advancing more than 60 kilometers in only three days. The onslaught triggers a command crisis: British and French Field Marshalls Haig and Foch want Australia's General Monash and Canada's General Currie, to apply their minds to perfecting a new way of waging war - one that will deliver ultimate victory. The generals arrive at the same conclusion: the path to victory lays with the use of the latest communication equipment to carefully co-ordinate artillery, tanks, aircraft and infantry. It's not only the beginning of 'total war', but the birth of modern warfare. By August, they're ready... for what will become a major turning point in the War: the battle of Amiens.

The Allies win a great victory at Amiens. The tide is turning but there are no illusions: the German Army remains a daunting fighting force... and it has an ace up the sleeve: the Hindenburg Line - the most formidable defensive system in military history. The generals formulate an ambitious plan incorporating the newly minted 'combined arms' tactics on a massive scale and lead their forces in a series of battles to break the line. The Canadians get close, the French get close, then on 29th September, a combined British, Australian and American force breaks through the 'impregnable' Hindenburg Line. The Germans have no answer to this onslaught and soon seek peace negotiations.