Mary Lennox was 9 years old, spoiled, rude & bad temper little girl. She lived in India with her parents but she in the care of an Indian nanny call an ayah because they always busy. One day she been left behind alone where her parents and servants dead.
There was no one in India to look after Mary, so she went to England live with her uncle, Mr Craven, who lived in a big house in Yorkshire, called Misselthwaite Manor. There Mary meet Mrs Medlock, her uncle's housekeeper. They don't like each other either.
One of the servant in the house, Martha ask Mary to go walk around at the garden so she don't feel bored. After awhile walk Mary meet an old man name Ben Weatherstaff at the garden and they talk to each other. Mary discover one locked door at the garden & want to find out about what behind the door.