Sozin's Comet, Part 3: Into the Inferno

Having decided to split up, Zuko and Katara head to the Fire Nation in order to stop Azula, who has become extremely paranoid and power hungry since becoming Firelord, once and for all; while Sokka, Toph, and Suki head to stop the air ship fleet that will destroy the Earth Kingdom. Both groups find their tasks harder than they expected. Meanwhile, Aang faces off with Ozai, but finds himself overwhelmed by the immense power he has gained from Sozin's Comet. Elsewhere, the Order of the White Lotus battles for the freedom of Ba Sing Se.