一个男人醒来发现世界上只剩下他一个人,于是到处寻找其他的幸存者,弄清到底发生了什么事。他怀疑自己卷入了一个政府的研究项目,而这个项目与其他人失踪有关。最后他终于找到几个人,当他们开始信任彼此时,设法要知道自己被遗留在这个世界上的原因。
[Aiming a shotgun at a crucifix] Zac Hobson: If you don't come out I'll shoot the kid! [recording his audio log] Zac Hobson: Zac Hobson, July 5th. One: there has been a malfunction in Project Flashlight with devastating results. Two: it seems I am the only person left on Earth. Api: You coming? Joanne: I wouldn't ride with you if you were the last man on Earth. Api: I'm workin' on it. Zac Hobson: I've been condemned to live. [speaking to a cardboard cut-out of Adolf Hitler] Zac Hobson: Look, I haven't got time to talk to you, I'm a very busy man! Besides, you've had your turn... Api: You tell lies!