Tim Greenman was an ordinary kid. He went to an ordinary school, lived in an ordinary place, and had ordinary friends. There was absolutely nothing unusual about Tim. But that all changed when he found the tunnel in his basement. Now, Tim and his friends struggle to survive as they are plunged into the world of espionage, a world filled with danger. Forced into a fight that is seemingly not their own, they must use all their abilities to stay alive. Yet not even staying alive is easy when there are no rules, and anything is allowed.