When an alien hunter arrives on post-apocalypse Earth, it takes down a gang of warlords and unexpectedly becomes a folk hero to the oppressed locals. Now with their support, the alien sets its sights on the warlords' ruthless leader.
因父亲挑起新旧敌对帮派的激烈地盘斗争，身为儿子的他则试图掌控腥风血雨的台湾黑社会，在兄弟情与自身处境的夹缝中被迫前进。外部敌对势力步步进逼，内部也因误会与压力而开始产生裂缝，使得情义不再是理所当然的依靠……
