影片讲述了小猪妖猪九九在部落遭遇灭族危机后，怀揣灵珠前往紫云仙山求援。在途中历经艰险与各路妖魔的追杀，猪九九克服磨难，最终习得高强法术，守护了家园并救回同伴，完成了自我救赎，故事弘扬了正义战胜邪恶的积极价值观。

As the underworld ferryman who has broke up their love, Man Shu meets Sha Hua, who can give them warmth, one day. The two are destined to have to go through various obstructions by the Mengpo. As the two undergo various tests and eventually survived the eternal night, to save the underworld, Shahua became a ferryman, guarding Manshu.