In 1986 a five year old Indian boy fell asleep on a train in Madhya Pradesh after being separated from his brother. He awoke to find himself speeding through the Indian countryside on a gruelling and terrifying journey to the huge Howrah station in Kolkata. There he was adopted by an Australian couple, growing up in Hobart, Tasmania with little recollection of his family or hometown. 25 years later, he tries to piece together what happened to him, and find his birth family. Dev Patel stars in this sober and yet profoundly stirring contemplation of family, roots, identity and home.