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.
Simon Newton(詹姆斯·麦卡沃伊 James McAvoy 饰)是Delancy’s 拍卖行的一名高级工作人员,他尤其擅长在名画面临被盗时的保卫工作。这天,著名画家Goya的一副画《Witches In The Air》(空中女巫)正在拍卖,这幅画预计价值两千五百万英镑。同时,一个以Franck(文森特·卡索 Vincent Cassel 饰)为首的盗贼团伙正在策划盗走这幅画。Franck们的计划进行得十分顺利,而Simon在面对这种场面时也驾轻就熟,迅速将这幅画用袋子装起,进行转移。当Simon即将把画送到安全地方之时,Franck出现了,他用枪击打了Simon的头部,并抢走这幅画。Simon晕了过去。回到家的Franck惊讶地发现,他打开袋子,却发现里面空无一物。Simon苏醒后,Franck找到了他,原来Simon是和Franck一伙的。然而Simon的头部受伤失去了部分的记忆,他忘记了那幅画在哪里。于是Franck带着Simon去找了一个女催眠师Elisabeth(罗莎里奥·道森 Rosario Dawson 饰),希望能够通过催眠让他恢复记忆......