Rene is a dedicated warrior-monk of the famed Knights Templar, a religious order whose mission to protect Christian pilgrims has degenerated into a power grab for wealth and influence in the Crusader Kingdom. Disillusioned by the corrupt motives of his superiors, Rene is nearly killed at the disastrous 1187 battle fought at the Horns of Hattin, which wipes out most of the Christian army. He is taken captive on the battlefield by brigands, but escapes and flees into the desert. Saved from starvation by Hasan, a mysterious Muslim traveler, he returns the favor when Hasan is attacked by outriders of Saladin's army. The two take refuge in an isolated oasis, the home of Soheila, widow of a Muslim warrior, and Soheila nurses the severely wounded Hasan back to health.
阿健是一名特警,近日力正在休病假。一天,早一场意外中,他就下了遭到了劫持的叶安娜(麦翠娴 饰),虽然做了一件好事,却因为打伤了三人已经人称“坏脑”的暴徒而遭到了停职处分。在另一宗珠宝抢劫案中,嫌疑犯老虎逃脱了恢恢法网,他和坏脑一拍即合,决定联手干一票大的,他们将目标放在了运钞车上。一天,阿健带着叶安娜以及好友沙展文一起在逛街,对阿健一直心怀仇恨的坏脑开枪向三人射击,最终叶安娜身受重伤,沙展文则不幸死于非命。悲愤交加的阿健决定替好友报仇,他暗中调查觅得了老虎的处所,和陈帮办联手将这一窝蛇鼠端了个底朝天。