上一集与胡巴分别后,天荫(井柏然 饰)带着小岚(白百何 饰)踏上寻父之路,在义薄云天的天师堂堂主云大哥(杨祐宁 饰)的帮助下,二人得知天荫父亲宋戴天的护妖轨迹;而重回永宁村的胡巴再度被妖王追杀,颠沛流离逃亡时结识大赌徒屠四谷(梁朝伟 饰)和一只妖怪,三人一起过着相依为命的生活,但又因屠四谷欠下的巨额赌债横生诸多波折。与此同时 ,江湖盛传小妖王胡巴的重金悬赏令,妖界大军、天师精英、绿林草莽闻风而动,多方势力为抢夺胡巴在清水镇掀起腥风血雨。千钧一发之际,念子心切的天荫和小岚通过天师堂找到胡巴并一起逃离险境。岂料,一场更大的惊天阴谋尾随而至,伺机而动……The story continues with Wuba after he parts way with his human parents Tian and Lan for his own journey. Peace has not been restored in the monster world after the death of the evil monster king.