The last episode charting the final months of the First World War, which saw the Allies learning to pull together using a coordinated command structure and the mass-production of hi-tech weapons, while the Germans remained on French soil, believing victory to be inevitable.
The dramatic Allied victory at Amiens led to victory in just 100 days - and the signing of a bitterly-resented peace, while other nations stumbled towards their own ceasefire agreements.