Aang goes to confront the Fire Lord while Zuko, accompanied by Katara, goes to confront Azula, Sokka, accompanied by Toph and Suki, go to take down the Fire Nation airships, the X-Men distract the rest of the Fire Nation, Spider-Man, joined by the Fantastic Four, fight for New York, the ninja return to Ninjago to save it from Chen, and the White Lotus, led by Iroh, go to take back Ba-Sing Se.
Nineteenth release in the Crossover Cinematic Universe. Final release in Book One. Next Book: Book Two: The Dragon and the Oni