Plot summary
Six months after the defeat of Amon and the Equalists, Korra believes she has mastered airbending, Mako works as a policeman, Bolin fares poorly in pro-bending with the new "Fire Ferrets", and Asami tries to keep Future Industries intact. Team Avatar joins Tenzin and his family in a visit to the Southern Water Tribe for the winter solstice. The festivities are disrupted by the rampage of a dark spirit, which neither Korra nor Tenzin can calm or repel. Unalaq, Korra's uncle and the chief of the Northern Water Tribe ultimately assuages the spirit's anger with a "spiritual" form of waterbending. Despite the misgivings of her father, who has a strained relationship with his brother, Korra apprentices herself to Unalaq to continue her spiritual development, rebuffing previous mentor Tenzin in the process.
Credits
Adapted from Wikipedia contributors, The Legend of Korra season 2. HTML formatting and reference markers removed.