1919. After fighting in WWI as a sniper Travis, now a Policeman in the vast empty spaces of northern Australia, loses control of an operation that results in the massacre of an Indigenous tribe. After his superiors insist on burying the truth Travis leaves in disgust, only to be forced back twelve years later to hunt down Baywara, an Aboriginal warrior whose attacks on new-settlers are causing havoc. When Travis recruits mission-raised Gutjuk, the only known massacre-survivor as his Tracker, the truth of the past is revealed and Travis becomes the hunted.

　　当一艘外星监狱飞船在加州沙漠坠毁时，释放出一个又一个怪物，他们迅速消灭了试图阻止他们的军队。 现在阻止外星人的唯一希望，在于政府一个专门研究外星武器的秘密分支-怪物猎人联盟。 但由于这个团队未经实战检验，地球之战将会非常残酷。

　　影片围绕着四个儿时的朋友在卡特里娜飓风过后回到新奥尔良下九区，他们发现自己的家和工作前景都被毁了。为了找工作，他们求助于当地的一名歹徒来实施一场大胆的赌场抢劫。但当抢劫出了问题，男孩们只得被迫进行危险的犯罪，为生存而斗争。