Mount Qingcheng Sect is annihilated, and the Mystic Sect faces an unprecedented calamity. With the awakening of the Vermilion Earth Fiend, Cold Shuangning, the sect leader of Qingcheng, narrowly seizes the Mystic Pearl and returns to the Green Jade Altar. Guided by the Star Oracle, they plan to journey together to Kunlun to resist the demonic army. Tian Yizi fails to attend the Mid-Autumn appointment, and Taibaizi realizes that Tian Yizi has met with misfortune, beginning the investigation into the culprit. Initially thought to be a plot of the demonic path, unexpected clues are discovered within the Kunlun Sect. The demonic forces are shrouded in mystery, with hidden truths elusive and unfathomable. The profound demonic master, Deng Chen, re-emerges from the Tianyin Valley due to the reincarnation of the Primordial Nine Origins, gathering demonic elders like the Purple-robed One to assemble the Three Talents Secret Key in an attempt to rescue the demonic patriarch, the Heavenly Demon Primordial Fiend. As they ascend Kunlun, the mastermind behind the scenes suddenly reveals their scheme, sweeping through both the Mystic and Demonic sects. Which side is righteous, and which is evil? The third season of "Spirit Flight Chronicles" unveils the truth.