In a clip show episode, Mako, Korra, and Bolin recollect their past. Mako tells Wu about his romantic entanglements and eventual breakup with Asami and Korra. Korra talks to Asami about her confrontations with Amon, Unalaq, Vaatu, and Zaheer. Varrick presents Bolin's life to the Earth Empire refugees in the style of an action film in which Bolin defeats all of Korra's previous enemies.

Korra and Chief Unalaq journey into a dangerous maelstrom and find a source of great spiritual power.

While tensions flare between the Northern and Southern Water Tribes, Korra struggles to remain neutral.

When the President of the United Republic refuses to help Korra, she decides to take matters into her own hands.

When Triad activity threatens to put Future Industries out of business, Mako performs an investigation and discovers a much bigger conspiracy.

As Asami steals Mako's heart, Korra struggles to express her feelings for Mako and also at the same time Bolin tries to win Korra's heart by being brave enough to ask Korra to go out with him. The tension gets higher as the Pro bending tournament starts.

Korra struggles to find a deeper connection with the Spirit World as she and the gang attend a Southern Water Tribe festival.

When Korra's parents are wrongfully arrested, Korra fights for their freedom.

Korra seeks Tenzin's help to enter the Spirit World for the first time.

Korra becomes part of Councilman Tarrlok's task force which aims to rid Republic City of the Equalists.

When President Raiko is attacked, Bolin saves the day.

Korra, the new Avatar, travels to Republic city to start her Airbending training.

Against Tenzin's prohibition, a frustrated Korra sneaks out to visit the pro-bending sports arena.

Team Avatar arrives in Ba Sing Se. While Korra has an audience with the Earth Queen, the others notice that Kai has gone missing, prompting Mako and Bolin to go look for him. They track him down, but he manages to shake them in the monorail, which takes the brothers to the Lower Ring, where they eventually run into their family from their father's side. Meanwhile, Korra and Asami set course for a small village to collect taxes as a favor to the Queen. After getting her money, the Queen brushes off Korra's request for help in tracking down the airbenders, leaving the Avatar to storm out of the palace. In the city, Kai found himself arrested by the Dai Li and subsequently conscripted in the Earth Queen's first airbending regiment.

Despite Bumi's bad attitude, Tenzin attempts to train the new members of the Air Nation with little success. Things become more complicated for the airbending master as Jinora, with Kai's influence, begins to exert her independence and demand her airbending tattoos. The new airbenders are tested when they are forced to face a group of bison rustlers who have taken Jinora and Kai along with several bison calves.

Korra returns to Republic City and Team Avatar faces their first mission together in three years when Prince Wu goes missing; Bolin and Varrick are on the lam.

Korra attempts to infiltrate the Equalist movement and learn more about its mysterious leader.

Korra and company attempt to close the spirit portals before Harmonic Convergence.

Korra discovers a way she may be able to defeat the ultimate dark spirit and save the world.

Prince Wu's big day is ruined by Kuvira; Korra thinks she may have found the key to a full recovery.

Korra suspects that an ally is working with the Equalists.

After the events of Harmonic Convergence, Korra has her hands full with trying to remove all the spirit vines that have overgrown Republic City. Her lack of success strains her relationship with President Raiko and brings down her approval rate among the city's populace. When airbenders are suddenly popping up across the world and causing more trouble for the city, President Raiko demands Korra to leave the city, which she takes as an opportunity to travel the world to find the new airbenders. Meanwhile, a dangerous criminal uses his newfound airbending abilities to escape.

Kuvira threatens Zaofu; Bolin is caught in the middle of the bad blood between Su Beifong and Kuvira.

The spirit vines in Republic City start abducting people and it's up to Korra to figure out why.

Tenzin, Jinora, and Team Avatar travel toward Ba Sing Se in order to find the new airbenders. Stopping at various villages along the way, they hope to recruit them in order to rebuild the Air Nation, though with little success as they were only able to convince a young boy named Kai to join them. Meanwhile, Zaheer travels the four nations to free his fellow criminals from their prison. After freeing Ghazan and Ming-Hua, they set course for the Northern Water Tribe to free their last member, P'Li. Upon learning of their escape, Lord Zuko sets course for the Northern Water Tribe himself in an attempt to stop them.