Avatar: The Last Airbender - The Rift (2014)

The Air Nomad holiday of Yangchen’s Festival is being revived for the first time in a century, led by Avatar Aang. His preparations are complicated by visions from the spirit of Avatar Yangchen, guiding him to a site of industrial conflict. There, a jointly owned Fire Nation and Earth Kingdom refinery operates on land sacred to his people. The air is thick with unnatural smog, and the spiritual balance of the place feels corrupted. Aang must reconcile his duty to restore tradition with the immediate threat posed by this encroaching machine, all while determining if the pollution stems from the factory or a deeper, more ancient disturbance in the spirit world.