The story of a family of Quakers in Indiana in 1862. Their religous sect is strongly opposed to violence and war. It's not easy for them to meet the rules of their religion in everyday life but when Southern troops pass the area they are in real trouble. Should they fight, despite their peaceful attitide?

Kim, a young boy living on his own on the streets of India, is actually the son of a British officer. He meets a lama, a holy man, and devotes himself to his tending. But when British administrators discover his birthright, he is placed in a British school. His nature, however, is opposed to the regimentation expected for the son of a British soldier, and he rebels. His familiarity with Indian life and his ability to pass as an Indian child allows him to function as a spy for the British as they attempt to thwart revolution and invasion of India. Rejoining his holy man, Kim (with the help of daring adventurer Mahbub Ali) takes on a dangerous mission.