Korra begins her spiritual training under Unalaq. The first step of this training is to travel to the South Pole and open up the spirit portal residing deep within the area. Mako, Bolin, Tonraq, Desna, and Eska come along as well. Tensions between Korra and her father grow as she discovers the truth about his relocation to the Southern Water Tribe.
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 .