Team Avatar arrives to the well known fluvial beach known as the Blue Delta, where they found the firebender of the Four Tetramasters, Tan, who'll teach something special to Hikar. Meanwhile, what are Yurei's plans?
Hikar arrives to the place Yurei has told him to meet alone, there he finds Aria and Zeick. Meanwhile, Team Avatar heads to Omashu to see the rumors of having spotted Hikar in the city, but is it true?
Shaila and three of the tetramasters head to the Red Lotus's base to the rescue of their friends. Aria and Hikar go under sugery to recover from their bruises thanks to Yurei, while Kensi, Bultina, Kosen and Tao, are mind controlled by some weird tiaras.
Hikar enters in the Avatar State, enraged, ready to crush Yurei and his maniatic plans to control him. Meanwhile, the tetramasters have to face the mind-controlled Team Hikar, but suddenly, Kensi get's back conciousness thanks to Shaila and Nikumi. Who will win this harsh battle?