|Korra failed to stop Kuvira from taking over the metal bender city.. now she's back in Republic City with Macco and Asami. The leave Prince Wu with Asami's family so that they don't need to take care of him anymore... meanwhile Boline and Verrik are on the run from Kuvira's forces. They were trying to make Verrik build a super death ray thing with the spirit vines, but Verrik outsmarted the guards and they got away.|
Kuvira is now harvesting spirit vines from the big tree at the swamp, and has a new team of engineers building this super weapon... Now the spirit vines are attacking people and imprisoning them within the spirit world. Korra can now tap into the spirit vines to sense what is going on around the world... but she can't enter the spirit world anymore because she's still being haunted by what Zahir did to her. She goes to confront Zahir in his prison in order to get rid of this fear... Zahir actually wants to help Korra get better now, because Kuvira's reign of fascism goes against his ideals. He helps Korra get over her fear and she can now enter the spirit world and free the people attacked by the vines.
Meanwhile, Boline and Verrik made it back to Republic City. The nation leaders are in disagreement about whether or not to attack Kuvira, and when Verrik tells them about the super weapon she's building, they still rule out a pre-emptive strike. Lynn and her niece are the only ones planning to go on a mission to save their family who Kuvira has locked up.. Boline tries to get back together with her girlfriend after he betrayed her by siding with Kuvira.. she says to make it up to her, he should come with them on their mission to save their family.