三名悍匪受聘於一名商人，原本計劃進行一場天衣無縫的假劫案，讓商人可以成功騙取巨額保險金，原來是一個非常簡單的任務，卻變成一場影響全世界的死亡浩劫。 悍匪老大神爺（Sam哥 飾)是一個處事果斷、心狠手辣、有仇必報的人，帶着兩名手下，一個忠心耿耿、處事冷靜的阿弟（鄺銘業 飾），另一個非常好色及神經質的阿波（陳錫文 飾），原本看似簡單的一場假劫案，卻因為阿波錯手殺掉了商人司機，令整盤計劃泡湯。商人於是打算設下埋伏安排多名殺手將三人滅口，卻反被神爺殲滅。之後，神爺打算找商人算賬，在辦公室門外卻發現一名行跡可疑的醫生，神爺乘機脅持他作為人質，辦公室內突然有兩名警員到訪調查，令事情變得急轉直下，神爺更槍殺了一名警員，眼見事情越弄越大，不能收拾。一時間女警與悍匪們劍拔弩張，怎知等着他們的還有更意想不到的危機。那名神秘醫生原來有着不為人知的過去，其真正身份更讓他們眾人大吃一驚，神爺他們不知不覺亂打亂撞下誤闖入一個不死日軍軍團的巢穴，他們面對的竟是一個戰意高昂準備復辟的軍團。 究竟醫生的真正身份是什麼人？為什麼二次大戰的日軍竟會再出現，神爺、女警能否放下兵賊彼此對立的身份，一起對付這班不死軍人？

Three gangsters were hired by a businessman. They originally planned to carry out a fake robbery so that the businessman could successfully defraud a huge amount of insurance money. It is a very simple task, but it turned into a death catastrophe that affected the whole world. The gangster boss (played by Sam Gor) is a decisive, ruthless and vengeful man. He leads two subordinates, one is loyal and calm (Abi), and the other is very lustful and neurotic (Apo). It seemed to be a simple fake robbery, but because (Apo) killed the businessman driver by mistake, the whole plan was ruined. The businessman then planned to set up an ambush and arrange for multiple killers to kill the three people, but he was annihilated by the boss instead. Later, The boss planned to settle a score with a businessman, but he found a suspicious doctor outside the office door.