Legend of Korra
4×2: Korra Alone
Episode Summary (from the Avatar Wiki): While being haunted by a shadow of herself in the Avatar State, Korra reminisces about the hardships she went to in the course of three years. In 171 AG, she retreated to the Southern Water Tribe in an attempt to heal her body and her mind. After two years and with Katara’s help, she was able to recover physically, though continued to have visions about Zaheer and the attempt on her life. In 173 AG, she set out on a journey across the world to reconnect with Raava, though to no avail. In 174 AG, while wandering through a small Earth Kingdom town, she decides to confront the vision of herself and ends up losing. However, when a small dog begs her to follow it, she does so and after passing out in a swamp after a new confrontation with her Avatar self, she wakes up in the home of Toph.