The Legend of Korra - Season 3 - Eps 6: Old Wounds
Per Su's suggestion, Korra begins to learn metalbending. Opal admits her reluctance to leave Zaofu due to her obligations to her family while Bolin deals with his fear of learning how to bend metal. Meanwhile, Lin faces her past during an acupuncture sessions, forcing her to relive the circumstances which led to her and Su's strained relationship. After a cathartic release of her repressed emotions, Lin makes amends with her sister as well as Opal, who she convinces to travel to the Northern Air Temple to train with Tenzin. Elsewhere, Zaheer and his group determine Korra's whereabouts shortly after escaping Republic City, deducing that she was under the Metal Clan's protection in Zaofu.
About The Legend of Korra

Title: The Legend of Korra
First Air Date: 2012-04-14
Last Air Date: 2014-12-18
Status: Ended
Rating: 8.22/10 (from 2124 votes)
Language: EN
Seasons: 5
Total Episodes: 52
Network: Nickelodeon
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Pierrot, Nickelodeon Animation Studio, Studio Mir
Synopsis
Avatar Korra, a headstrong, rebellious, feisty young woman who continually challenges and breaks with tradition, is on her quest to become a fully realized Avatar. In this story, the Avatar struggles to find balance within herself.
Cast

Janet Varney
Korra (voice)

David Faustino
Mako (voice)

P.J. Byrne
Bolin (voice)

Seychelle Gabriel
Asami Sato (voice)

J.K. Simmons
Tenzin (voice)

Maria Bamford
Pema (voice)

Kiernan Shipka
Jinora (voice)

Darcy Rose Byrnes
Ikki (voice)

Logan Wells
Meelo (voice)

Dee Bradley Baker
Naga / Pabu / Tarrlok (voice)