Nine people survive a plane crash into the Mexican jungle. But they don't know that a murderer lurks in their midst… Nine days later, their bodies are recovered by the Mexican army. One of the passengers is missing...but who?

The survivors work out how to call for help but are faced with a treacherous climb. As some of the group begin to crack under the pressure, a third death and the most violent so far, warns that they are running out of time.