The Legend of Korra - Book Four: Balance ( ).The Legend of Korra - Book Four: Balance (DVD) ( ).The Legend of Korra - Book Three: Change ( ).The Legend of Korra - Book Three: Change (DVD) ( ).The Legend of Korra - Book Two: Spirits ( ).The Legend of Korra - Book Two: Spirits (DVD) ( ).The Legend of Korra - Book One: Air ( ).