I am sure you do not need me to explain the story to you, so best if you just go ahead and watch the trailer for yourself down below:
https://www.youtube.com/watch?v=MKCVKzaJLiA&feature=youtu.beVideo can't be loaded because JavaScript is disabled: THE SECRET GARDEN – Main Trailer – From the producer of Harry Potter and Paddington (https://www.youtube.com/watch?v=MKCVKzaJLiA&feature=youtu.be)
THE SECRET GARDEN tells[...]