本(běn)部电(diàn)影(yǐng)讲(jiǎng)述(shù)沉香经历(lì)华山之战，结(jié)果(guǒ)挚(zhì)爱殒(yǔn)命也(yě)未(wèi)救出父(fù)母(mǔ)，陷入(rù)消(xiāo)沉的沉香，在好友(yǒu)的帮助下终(zhōng)重(zhòng)拾(shí)信心，踏上(shàng)寻(xún)找(zhǎo)开天神斧的路(lù)途，然当(dāng)初华山之战沉香无意(yì)破坏(huài)了伏魔大(dà)阵(zhèn)，误(wù)放(fàng)走(zǒu)了先天心魔，一(yī)场三(sān)界(jiè)的劫难(nán)即将(jiàng)降(jiàng)临(lín)