Perhaps the most famous battle in British history is the defeat at Hastings in 1066, when William the Conquerer's Norman forces took victory on the British south coast. Historian Dan Snow puts his walking boots on and sets off to see what the British landscape can teach us about this fascinating battle. From their violent arrival on these shores to their most sustaining legacies, Dan's trilogy of walks follow an evolutionary path through the Normans' era, from invasion to conquest, to successful rule and colonisation.