Avatar: The Last Airbender (2005)

S2E1 The Avatar State

Title: The Avatar State Plot: Haunted by visions of the destructive potential of his Avatar State, Aang and his friends encounter an ambitious general from the Earth Kingdom who has a bold strategy to conquer the Fire Nation. At the same time, Zuko and Iroh, recovering from their unsuccessful assault on the North Water Tribe, receive an unexpected visit from Zuko’s sister, who brings what appears to be positive news.