Diz (Joel Courtney) is a reckless teenage drifter living life on the run. Abandoned by his parents as a child, he looks out for himself and doesn't accept handouts. He takes whatever he wants and runs. Jaded and determined to answer to no one, Diz lives a life marked by thievery and abandonment. Things change for Diz when he floats into a small town on the Snake River. There he is confronted by an unflappable old man named Marty and falls for Marty's guarded granddaughter, Selah. When Diz robs a local drug-dealing crazy, he becomes the owner of a giant pile of cash and the target of two vicious killers. With more money than he knows what to do with, and criminals at his heels, Diz puts the people he's learned to care about in danger, still trying to win Selah. But some things can't be stolen or bought. The River Thief is a film about guilt, self-sacrifice, and accepting life as a gift.

　　经历过外星人大举入侵地球后，人类知道，这些入侵者有一天一定会再回来。人类运用先前外星人所遗留下来的科技文明，发展出一套强大的地球防御系统以抵御外星人的再度入侵。然而，20年后，这些外星人却带着人类前所未见、更先进强大的武力再次入侵地球，带来更大的全球灾难，几位勇敢的年轻人，他们挺身而出，将再一次为人类生存而战斗……

　　里奇（朱利安·迪尼森 Julian Dennison 饰）是一个性格非常恶劣的小男孩，没有人愿意和他一起玩，而他带给别人的也只有无穷无尽的麻烦。终于，里奇因为他的劣迹斑斑而被送到了一座位于大山环绕之下的小村落里，那里住着她彪悍的婶婶宝拉（瑞秋·豪斯 Rachel House 饰）和看起来就不好惹的疤面姨夫海克（山姆·尼尔 Sam Neill 饰）。
　　虽然里奇表现得对这里的生活非常厌恶，屡屡想要逃跑，但宝拉对里奇的关心和爱渐渐融化了后者内心的坚冰，里奇第一次感受到原来被爱是这样一件温暖的事情，和婶婶每天为他准备的暖水袋一样的温暖。然而好景不长，婶婶去世了，里奇将被再度送进福利院。