It's been 30 years and the Secret Garden is in trouble again. The once vibrant and beautiful garden is dying and nobody knows why. The enchanted door to the garden can't be found and the magic has disappeared. When a special girl named Lizzie is chosen to live in the castle, she discovers the garden and is determined to save it. She sneaks away from the watchful eye of her guardian Miss Sowerby and runns off with the key to the garden door. Once inside, even with the help of a few friendly animals, she still can't solve the garden's mystery. She realizes she must break all the rules and follow her heart to bring life and magic back to the Secret Garden.