Season 3

Complete listed story — includes the ending

1. A Breath of Fresh Air

Two weeks after Harmonic Convergence, portions of Republic City have become covered in spirit vines and after Korra cannot remove them, President Raiko expels her from the city. Around the world, people begin to spontaneously develop the ability to airbend, including Bumi. Tenzin, Korra, and her friends embark on an airship trip to attempt to recruit these people into a new Air Nomad nation. Meanwhile, the dangerous criminal Zaheer ( Henry Rollins ) escapes from a remote prison thanks to his own new airbending skills.

2. Rebirth

Traveling across the Earth Kingdom with Team Avatar and Jinora, Tenzin finds that most of the new airbenders are not willing to uproot their lives to join the new Air Nation, although they find a first recruit in Kai, a sly young thief trying to escape Earth Kingdom authorities. Meanwhile, Zaheer liberates the earthbender Ghazan (Peter Giles) and the armless waterbender Ming-Hua ( Grey DeLisle ) from their respective prisons and is apparently intent on abducting or killing the Avatar. An elderly Zuko ( Bruce Davison ) travels to the North Pole, where the last member of Zaheer's band is being kept.

3. The Earth Queen

Team Avatar arrive in Ba Sing Se as part of their search for new airbenders, and receive an ambivalent welcome from Queen Hou-Ting, who is of the belief that Avatar Aang manipulated her father in his time on the throne. Korra reluctantly agrees to a tax collection effort on the Queen's behalf in order to gain her cooperation, fighting off bandits with Asami during the mission. The queen nevertheless continues to claim that there are no airbenders in the city. Meanwhile, Kai absconds from the group to pickpocket, and while looking for him, Mako and Bolin meet the family of their late father. They learn that the city's secret police, the Dai Li (who are now more firmly under the control of the throne, but are still sinister in nature) are capturing new airbenders, and indeed Kai is arrested and forced to serve in the army. At the North Pole, Zuko, the new northern water tribe chiefs Desna and Eska, and Korra's father Tonraq visit Zaheer's last imprisoned comrade, his girlfriend P'Li, a dangerous firebender.

4. In Harm's Way

At the North Pole, Zaheer and his team free P'Li from her icy prison, and she is revealed to be a powerful combustion-bender. In Ba Sing Se, Lin Beifong arrives to warn Korra about the threat to her life. With Lin's aid, Team Avatar liberate the press-ganged airbenders. After escaping the Dai Li and the Earth Queen's wrath, Tenzin takes the airbenders to the Northern Air Temple on their consent, while Lin, Korra, and her friends search for more airbenders.

5. The Metal Clan

Team Avatar arrive in Zaofu, a metal city led by Suyin Beifong ( Anne Heche ), Lin's estranged half-sister and the mother of Opal ( Alyson Stoner ), a new airbender. Korra begins training Opal, but cannot convince Lin to mend the rift between herself and Suyin. In Republic City, Zaheer infiltrates Air Temple Island in an attempt to find Korra but escapes after he is identified and attacked by Kya.

6. Old Wounds

While Korra learns metalbending from Suyin, Lin confronts memories of her youth: as a young police officer, she was scarred by Suyin while apprehending her at a crime scene, and their mother Toph covered up the incident before sending Suyin away and resigning as police chief. After a violent confrontation, the sisters reconcile with one another. Meanwhile, Zaheer and his crew escape Republic City after a car chase with police and Zaheer, who proves capable of entering the spirit world, ascertains the Avatar's whereabouts.

7. Original Airbenders

At the Northern Air Temple, Tenzin finds it difficult to teach the new airbenders about Air Nomad culture. At Bumi's suggestion, he imposes a strict training regime, causing more stress and exhaustion. Jinora and Kai discover a herd of young sky bison and are abducted by poachers. With Jinora calling on the aid of spirits, they call to the other airbenders for help, and the criminals are easily overwhelmed. Tenzin promises to consider granting Jinora her airbending master tattoos.

8. The Terror Within

In Zaofu, Korra and Bolin continue to learn metalbending, and Opal leaves for the Northern Air Temple. At night, Zaheer and his team infiltrate Zaofu and capture Korra, but Team Avatar, backed up by Lin, Suyin and a contingent of metalbenders, are able to rescue the avatar, and the assailants retreat. In the subsequent investigation, Korra and her friends discover that Suyin's adviser Aiwei has been aiding Zaheer, but he escapes through a secret tunnel. Later, with the help of Suyin, Team Avatar sneaks out of Zaofu to pursue the attackers.

9. The Stakeout

Team Avatar follows Aiwei to the Misty Palms Oasis, and Korra enters the Spirit World to find Aiwei and Zaheer meeting there. Zaheer throws Aiwei into the Fog of Lost Souls and explains the goals of his secret society, the Red Lotus, to Korra: a malevolent offshoot of the Order of the White Lotus, they want to overthrow governments, in service of the ideological belief that chaos is the natural state of the world. While Zaheer stalls for time, his allies close in on Korra's inanimate body. Bolin and Mako are overpowered, while Asami, fleeing on Naga with Korra's body, is captured by the Earth Queen's forces. The Red Lotus follows in pursuit.

10. Long Live the Queen

En route by airship to Ba Sing Se, Korra and Asami escape from their cell but crash-land the airship in the desert. Working with the airship's crew, they escape a massive desert animal and arrive back at the oasis. In Ba Sing Se, the Red Lotus propose to exchange Mako and Bolin for Korra to the Earth Queen. After hearing of Korra's escape, they attack and defeat the Dai Li, and Zaheer uses his airbending to asphyxiate the Earth Queen to death. The Red Lotus destroys part of the city's inner walls, announcing that the city belongs to the people, and chaos breaks out. Zaheer frees Mako and Bolin and gives them a message for Korra. At the oasis, Asami and Korra meet Tonraq, Zuko, and Lin and hear about the revolution.

11. The Ultimatum

As the inner city of Ba Sing Se is looted and razed, and riots and fires spread throughout the outer city, Mako and Bolin escape with their family to the Misty Palms Oasis. They tell Korra that Zaheer intends to kill the airbenders at the Northern Air Temple unless she surrenders to him. After speaking to Iroh in the spirit world, Korra uses the Metal Clan's radio to contact Tenzin just as the Red Lotus attacks the Temple. Tenzin resists the invaders with his siblings while the other airbenders attempt to escape. After the defenders are overpowered, the Red Lotus throws Kya and Bumi off the mountain and subdue the exhausted and badly beaten Tenzin.

12. Enter the Void

Korra agrees to give herself up to the Red Lotus to save the airbenders, but as she does so, her friends discover that Zaheer has already removed the hostages from the temple. Ghazan traps Tenzin, Asami, Mako, and Bolin with lava and flees with Ming-Hua, but Korra's friends escape successfully thanks to Bolin's new-found lavabending skills, though the Northern Air Temple is critically damaged in the process. Meanwhile, Lin, Suyin, and her metalbenders fight P'Li. Suyin breaks the deadlock by killing P'Li with the contained force of her own combustion-bending. Zaheer fights Korra and Tonraq, who is thrown off a cliff but saved by the metalbender captain Kuvira ( Zelda Williams ). Zaheer escapes with the unconscious Korra using his own newfound ability to fly.

13. Venom of the Red Lotus

The Red Lotus tortures a chained Korra by poisoning her with mercury, in order to force her to the point of death, triggering the Avatar State before they kill her, which would end the cycle of the Avatar's rebirth. However, a wrathful Korra overpowers her captors and fights Zaheer in the skies. Meanwhile, her friends find and rescue the airbenders. After Mako electrocutes Ming-Hua, he and Bolin narrowly escape Ghazan's collapsing the Red Lotus's lair on top of himself. As Korra is about to succumb to the poison, Jinora leads the airbenders to pull Zaheer out of the sky with a massive air vortex formed from their combined bending. Zaheer is captured, and Suyin metalbends the poison out of Korra. Two weeks later, in Republic City, a weakened Korra, using a wheelchair, watches as Tenzin anoints Jinora as an airbending master and rededicates the Air Nomads to a nomadic life of service to the world, following Korra's example.