Zhang Wuji and his parents return from an isolated island and travel to Wudang Mountains to celebrate his grandteacher Zhang Sanfeng's 100th birthday. Several martial artists attempt to force Zhang Wuji's parents to reveal the whereabouts of his godfather, Xie Xun, but they refuse and commit suicide in defiance. Zhang Wuji has been seriously injured by the Xuanming Elders and almost dies, but Zhang Sanfeng shows special care towards him and attempts to preserve his life. However, that incurs the jealousy of his senior Song Qingshu, who collaborates with Zhou Zhiruo of the Emei Sect to harm him.