Unalaq has finally merged with Vaatu and is terrorizing Republic City in the form of a giant spiritual monster. Without Raava or any prior Avatar connections, Korra must meditate and find the cosmic energy of the universe within herself in order to defeat Vaatu.
Elenco: Janet Varney , J.K. Simmons , David Faustino , Aaron Himelstein , Adrian LaTourelle , Aubrey Plaza , Chris Hardwick , D.B. Sweeney , Daniel Dae Kim , Darcy Rose Byrnes , Dee Bradley Baker , Eva Marie Saint , James Remar , John Michael Higgins , Kate Higgins , Kiernan Shipka , Lance Henriksen , Lisa Edelstein , Logan Wells , Maria Bamford , Mindy Sterling , P.J. Byrne , Seychelle Gabriel , Steve Blum .