The Fire Nation is threatened when the Kemurikage, mysterious figures thought only to exist in legend, tell of a prophecy that Zuko must be removed from the throne or the country will perish. Aang and his friends escort the Fire Lord and his family back to the Fire Nation Capital, but unbeknownst to them, unrest brews as the New Ozai Society prepares to make their move against the throne and children go missing from their homes under mysterious circumstances.