India in 1947 is a country in the grip of chaos, torn apart by internal strife. When the Doctor and Donna arrive in Calcutta, they are instantly swept up in violent events. Barely escaping with their lives, they discover that the city is rife with tales of 'half-made men', who roam the streets at night and steal people away. With help from India's great spiritual leader, Mohandas 'Mahatma' Gandhi, the Doctor and Donna set out to investigate these rumors. What is the real truth behind the 'half-made men'? Why is Gandhi's role in history under threat? And has an ancient, all-powerful god destruction really come back to wreak his vengeance upon the Earth?