La grieta (Avatar. La leyenda de Aang, 3)

In The Rift, Aang and his friends celebrate an Air Nomad festival that hasn't been held in over a hundred years. However, enigmatic visits from the spirit of Avatar Yangchen lead Aang to a refinery located on land sacred to the Air Nomads. There, they will face great danger when an ancient and dangerously powerful spirit awakens, seeking revenge and destruction.