Episode Title:Rebel Spirit.Episode Description: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 Norther 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.