清末民初,佛(fó )山武学宗师黄飞鸿因噩(è )梦预感女记(jì )者莫十三遇险,携弟子前(qián )往古云村寻(xún )人。村中蜈蚣教借蛊术胁(xié )迫村民献祭(jì )孩童,莫(mò )十三探查真相时(shí )被擒,身中噬(shì )魂蛊。黄(huáng )飞鸿闯祭坛救人(rén ),因不忍伤及被蛊惑(huò )的村民反中蛊毒(dú ),幸得卧底蜈蚣教的(de )鬼脚七暗中相助(zhù )。众人合(hé )力破除水源(yuán )蛊毒,救治村民,鬼脚七伤(shāng )愈拜师。巫师(shī )自焚后,线索指向广州东(dōng )瀛会馆。黄飞(fēi )鸿潜入会馆救出被掳孩(hái )童,对决主事(shì )服部一郎,得知幕后黑手(shǒu )为西洋吸血(xuè )鬼麦克(kè )罗。麦克罗散播疫(yì )毒祸乱羊城,以莫十(shí )三性命相要挟。黄(huáng )飞鸿于绝境中融合(hé )腿法,悟出佛山无(wú )影脚,击杀麦克罗。蛊(gǔ )毒尽解,百姓恢复(fù )神智,广(guǎng )