The German's launched the massive Operation Michael on an 80 kilometre front on March 21st 1918, the greatest offensive of the war. We hear stories of desperate defence and the crumbling of the Allied line, we meet great characters like New Zealand's most famous soldier Richard Travis, the unorthodox 'king of no-man's land'. And we reach what is, for many, the defining moment in Australia's war: Villers-Bretonneux. Here, where Australia has built its memorial, the Australians stood their ground and turned back the relentless German advance.