This seemingly peaceful world is not just inhabited by humans. All along, the little demons and fairies in the world have been living among us in human form. Among them, there are those who are kind-hearted towards humans and those who are wicked. The secret organization that maintains order and peace in this world is the hidden martial arts clan known as the Hidden Mist Sect. The evil demon Tian Xie attempts to use the power of Tai Sui to eradicate the Hidden Mist Sect and build a demonic kingdom, but unexpectedly, Tai Sui becomes attached to Wu Yin.

战国时期，魏伐楚致楚败。楚国残余势力为报灭国之仇潜入魏国都城大梁，伺机刺杀魏王。皓雪逐个谍杀魏王身边谋臣以此消弱魏国实力，左将军万坤虚张声势明刺魏王，实则声东击西刺杀秦王使节，为秦国灭魏挑起干戈事端。

1937年七七事变爆发，日军开始全面侵华，大肆掠夺中国黄金等战略资源充当军费。八路军胶东军区的战士们与猎人俞洞锋等百姓一起浴血奋战，历经艰辛千里运金，战士和百姓们与日本侵略者展开旷日持久的生死搏杀，最终把黄金运送到延安党中央，有力地支援了全国抗战。

“天煞孤星”华英雄战胜日本武士无敌后隐世，此期间中华土地上的敌寇愈发猖狂，日本邪恶组织罗修门与西方列强相互勾结，肆意迫害华人同胞，敌寇之首金太保为争天下第一，以吸食童子精血修练邪功，残忍至极。而一直苦于无法突破自身禁制练功的英雄之子华剑雄，偶然间在梦中得高人指点，最终突破极阳体质练就神功。当百姓处于水深火热之时，华英雄出现，英雄父子联手抵御外敌，再现中华傲诀，护华人同胞。

影片讲述了乌龙院“废柴”大弟子阿亮（夏志远 饰）一心要成为伟大的驱魔人，因缘巧合下结识了沙客阳（赵文浩 饰）、艾飞（余俪 饰），三人奉命将伏魔剑送往锁妖塔封印妖王，一路上欢乐逗趣降妖伏魔的奇幻故事......