After Avatar Aang dies at age 66, the Avatar Spirit now resides newborn girl, Korra, in the Water Tribe to continue the legacy of the Avatar. Korra at a young age already learned to master Water, Earth and Fire and must now learn airbending under the guide of Aang's oldest son, Tenzin. Korra must now live on Air Temple Island in Republic City in order to train, joining the Fire Ferrets in the new popular sport known as Pro-Bending to help her learn to master all four elements together in order to keep Republic City safe from the growing evil that is boiling inside the city coming from a group known as the Equalists, whom are chi-blockers, an art created by Fire Nation, non-bender Ty-Lee, 70 years before. Can Korra master Airbending, win the Pro-Bending championships and stop the Equalists?