100 years ago, Britain was the most powerful nation in the world and the British Empire ruled over half the people on earth. All the pomp and pageantry of imperial rule is encapsulated in this first episode. Remarkable and rare film captures as never before such glorious occasions as the 1906 Trooping the Colour in London; the 1911 Delhi Durbar in India and a World War One victory parade in Paris in 1919. But as the century gets into its stride, the cameras are also there to record less magnificent events, among them the General Strike of 1926, which highlighted the social divide in post-war Britain. Even in India, the power of British rule is fading, as nationalism gains strength under Gandhi and Nehru. Although the Second World War temporarily unites the colonies and dominions in battle, victory ironically spells the beginning of the end for the Empire. In a new world order of American and Soviet power, India finally achieves her independence and Britain is left exhausted and fearful of the future.