>>96346173
With the eclipse plan an utter failure, the Team reverts to their original plan: kill the Fire Lord before Sozin's Comet returns. To do that, Aang needs a firebending teacher. Oh hey, here's Zuko, now fully a good guy and wanting to help. It takes a while and a few redemption adventures, but they finally accept Zuko into the group. During of these adventures, Mai betrays Azula to save Zuko, and Ty Lee betrays Azula to save Mai from Azula's wrath. Azula's not happy.

Aang is learning firebending, but he's having trouble with the idea of actually needing to kill someone. He communes with past Avatars, who all tell him "dude, you gotta kill that guy". He then talks to ancient spirit, who gives him some secret knowledge. With the comet arriving soon, Fire Lord Ozai preemptively declares himself Phoenix King, ruler of the world, and tosses the Fire Lord title to Azula. Being basically abandoned by her father as an afterthought and having lost the loyalty of Ty Lee and Mai, Azula fucking snaps and starts banishing people left and right, eventually ending up completely alone and hallucinating her missing mother.