For fans of the Avatar series, look no further. Nickelodeon is planning to release a spin-off series of Avatar known as, "Avatar: The Legend of Korra" Taking place 70 after the last episode left off. It stars Korra, the next Avatar in line. Having already mastering Fire, Earth, and Water, She still must master airbending from Aang and Katara's son, Tenzin, rather than scaling the globe. They do this to stop the Anti-Bender revolution going in the city they live in known as "The Republic City"