In the summer of 1857, over 1,000 British people in Cawnpore (now Kanpur), nothern India, were killed by Indian soldiers as bloody retribution for ill treatment. The massacre sent shockwaves through Britain, prompting Queen Victoria to declare a National Day of Humiliation. In India itself, the massacre triggered around 20,000 revenge executions by British troops and the British Government established direct rule over the subcontinent. This documentary tells the story of the tragedy using contemporary records and diaries and shows how its aftermath played a part in bringing about the movement for Indian independence.