Four people awake to find themselves in the ultimate prison. An ex-soldier, a beautiful woman, an average Joe, and a young computer hacker all share a connection that has led to their imprisonment. Why are they there? And how can they escape? The answer seems to lie with the fifth prisoner, an old man who knows far more than he is saying. It’s the ultimate locked room mystery, and all of their lives hinge on solving it in FIVE NUMBERS.