As Korra tried to fight Unalaq, Vaatu extracted Raava (the Avatar Spirit) from Korra. Raava was attacked, causing her to disappear. By losing her, Korra ended up severing her ties with her past lives, ...

Despite Aang and Korra’s best efforts to maintain peace during their eras, the new series is “set in a world shattered by a devastating cataclysm.” The official description continues ...