Is was on Netflix at some point, its a animated one where earth has been overtaken by nature and the moon split in two by plants. A boy goes into some old caves and find a preservation thing where he wakes up a girl from the past. She has a thing around her neck which can help reset the world. A guy responsible for this wants to reset the world so its not controller by nature. Oh, and there is a giant mother****** mountain which moves. Also the boys father is a tree because he took some of natures energy.