|Title Name||Avatar The Legend Of Korra 4
|No of Disc
||1 Disc (13 Episodes)
|Format||DVD / NTSC & All Region Code|
The final season, Book Four: Balance, is set three years later. Korra slowly recovers from the injuries incurred in the fight with Zaheer, traveling the world alone and haunted by fear. Meanwhile, Suyin's former head of security, Kuvira, reunites the fractured Earth Kingdom with the metalbenders loyal to her, and refuses to release power to the unpopular heir to the throne, Prince Wu. As the head of her new, totalitarian "Earth Empire", Kuvira seizes Suyin's city of Zaofu and sets her sights on the United Republic, which she claims for her nation. With Toph Beifong's help, Korra frees herself of the remnants of Zaheer's poison, but after losing a duel to Kuvira at Zaofu, she allows Zaheer to help her overcome her fears and regain her power. When Kuvira attacks Republic City with a giant mecha carrying a spirit-powered superweapon, it takes all the efforts of Korra and her friends, including the inventor Varrick and his assistant Zhu Li, to stop the colossus. Only after Kuvira's weapon blows open a new portal to the Spirit World, destroying much of the city, does she concede defeat. The series ends with the prospect of democracy for the former Earth Kingdom, and with Korra and Asami leaving together for the Spirit World.