The kids return to the Fire Nation and prepare for their final confrontation with Firelord Ozai, but they discover that the Firelord has plans of his own: he has ordained himself Phoenix Lord and appointed Princess Azula as the next Firelord. In the spectacular 4-part finale of Avatar Book 3: Fire, Aang fulfills his destiny as Avatar and confronts the Firelord in the greatest battle of the series.