When a crisis is so bad that traditional law enforcement methods are not effective, there is a specially trained, top secret agent ready to be deployed only by the Vice President. John Case is this agent, and he is so hidden that even the President himself does not know of his existence. Case is tough, intelligent, and athletic - and he works to protect the country and its citizens from all threats by any means necessary.

Whether a global threat looms, or an internal matter needs attention in Washington, Agent X is ready for any high-stakes mission that is too sensitive for the FBI and the CIA.