The main character Mary Lennox "Dixie Egerickx" is a spoiled 10-year-old girl of rich parents who grew up in India. After everyone in her family dies from cholera, Mary is sent to live in Misselthwaite manor in Yorkshire with her uncle Archibald Craven "Colin Firth" and the housekeeper Mrs. Medlock "Julie Walters". Mary discovers that the house holds many secrets. There she finds a key that leads her to a garden held locked for years by her uncle after the death of his wife. Soon she finds a room in the manor where her sick cousin Colin "Edan Hayhurst" has spend his entire life in his bed, completely unable to walk. But with the help of her new friend Dickon "Amir Wilson" the children manage to bring the garden back to life. In the garden Colin learns to walk and he becomes a healthy and happy young boy. When Lord Craven one day sees the children playing in the garden, he is amazed by the sight of his son walking. He feels joy for the first time since years.