十七岁的亚伦·史蒂文是一名高中生，当他像平常一样在树林里走路时，却将自己卷入了一件五百万美元的银行抢劫事件。 亚伦藏匿在独木舟下，偷听到强盗的谋杀事件的部分计画，在混乱中他将金钱偷走，并且逃到他认为最安全的地方躲藏─他的高中学校里，劫匪在锁定的学校搜寻他的踪影并且立誓要消灭证据。 亚伦发现自己被锁在学校里，他努力又绝望地让自己和他的老师生存下来，因为这个精神异常的抢匪准备杀了他们……Seventeen year old Aaron Stevens stumbles into the aftermath of a five million dollar bank heist gone wrong. Hiding under a canoe, Aaron partially catches the murder of one of the robbers. In the chaos he sneaks away with the money and heads straight for the closest place of safety, his high school. Terrified, Aaron tells his shocking tale to Amanda Becker, his drama teacher, but it doesn't take long for one of the psychotic robbers to show up. In the locked down school the pair are relentlessly pursued in a quest to get the money back and wipe out the evidence.
