Avatar The Last Airbender: La Brecha Parte 1

Avatar Aang enlists the help of his friends to honor the Festival of Yangchen, one of the greatest celebrations of the Air Nomads, which hasn’t been held in over a hundred years.

But mysterious visits from the spirit of Avatar Yangchen lead Aang to a refinery, jointly owned by the Fire Nation and the Earth Kingdom, that has been operating on sacred Air Nomad land!

Is it simply a case of corporate greed, or is there an even greater mystery at play?