三个大学好友一同前往年度派对盛事，当晚却遇上灵异现象，他们能否安然无恙的保全性命？三人的友情又是否能经得起考验？

While returning from a military expedition a helicopter crash lands a commando unit in a dense, remote tropical jungle – a lost world populated by dinosaurs. Now they must find a way out of this isolated valley before becoming prey for prehistoric predators.