An and his friends continue their journey north to find the legendary Water Kingdom, hoping to save the world.Rumors of supernatural powers are being discussed again, which makes Ann feel deeply troubled about her responsibilities.Their journey is full of unknowns and dangers, but they still move forward firmly.

During their journey, they discovered a forest that had been destroyed by the Fire Nation.The land is sick, and both flora and fauna are affected.They met a little girl and her father, and learned from them that the Fire Nation had destroyed the forest to create a path.Due to the destruction of the forest, the land has lost its vitality, animals no longer graze, crops cannot grow, and even people who participated in the team looking for food have disappeared, including the little girl's father Shi Yong.

Meanwhile, Princess Azula is pressuring General Zhao for more resources.However, her despicable behavior was seen through by her father.Elsewhere, Zuko and Ai are following the rumors of water control, and they meet a bounty hunter named June.Despite Zuko's initial disapproval, Love hired her.Finally, they decided to act in an informal way because General Zhao had already taken action.

An decided to venture into the destroyed forest. He entered the spiritual world in the form of a soul, but accidentally separated the souls of Katara and Sokka.So the three of them ventured into the forest together.The forest is filled with all kinds of interesting creatures, including a giant talking owl that only Ann can hear, and a fox with three tails.The fox warns them of the dangers of the mist, explaining that the giant monsters they encounter are actually the wounded souls of the forest, driven mad by pain.

In the fog, Katara and Sokka are forced to recall their most painful memories.Katara saw her mother sacrificing herself to save her, while Sokka saw his father's disappointed look in his eyes.These memories hurt them deeply, but they also strengthened their beliefs.

Deep in the forest, An also encountered a monster called Taikoo, the face-stealing god.It steals people’s faces and feeds on their desperation and suspicion.As a supernatural being, An overcame the tricks of the face-stealing god Taikoo and met Master Ji'an.Master Ji'an knew that An needed his help, so he sacrificed himself to explain Taikoo's situation to An.He told An that the previous Avatar Luogu had fought against Taikoo and defeated it.

An decides that he needs to use Luo Gu's power to defeat Taikoo, but he needs to get to the Fire Nation's temple.Before leaving, Master Ji'an told him to stop feeling guilty about the destruction of the Sky Temple and to let him go.So Ann embarked on a journey to the Fire Nation alone, ready to face new challenges and adventures.