Mary Lennox is orphaned in India after a cholera epidemic kills her parents and she is sent to live with her uncle in England. Upon arriving at her uncle's large mansion, Mary explores the many gardens but discovers that one garden has been locked for 10 years. With the help of her new friend Robin, a robin, Mary finds the key and hidden door to the secret garden. Inside she finds her sickly cousin Colin, who is confined to a wheelchair and believed close to death. Mary and Colin form a friendship and she tries to help him recover in the secret garden.