A terrorist bomb explodes during a South Korean celebration of the anniversary of the election of its first president. Alarms are raised in Washington. No one is claiming responsibility. The first suspect is North Korea. Could it be making a power play against South Korea and unification? If so, how will the U.S. respond? Paul Hood, Director of the Op-Center, must answer these questions. The Op-Center, a largely autonomous new agency which takes on the government's toughest security problems, is only six months old, and has never been given a foreign crisis until now.

Charged with spotting terrorist threats, the top-secret "Campus" has its hands full when Middle East thugs and Colombian drug lords join forces. New Campus recruits include Jack Ryan Jr., son of master spy John Patrick Ryan, now President.

On his last combat deployment, Lt. Cmdr. James Reece's entire team was killed in an ambush that also claimed the lives of the aircrew sent in to rescue them. But when those dearest to him are murdered on the day of his homecoming, Reece discovers that this was not an act of war by a foreign enemy but a conspiracy that runs to the highest levels of government. Now, with no family and free from the military's command structure, Reece applies the lessons that he's learned in over a decade of constant warfare toward revenge.

The number-one threat to our nation’s security is in cyberspace. The new US president wants to tackle the urgent problem head-on and launches a top secret line of defense: Net Force. But before the organization can be announced, the country is hit by an unprecedented, two-pronged terror attack. 

For years, ex–Navy SEAL Maxwell Moore has worked across the Middle East and behind the scenes for the Special Activities Division of the CIA, making connections, extracting valuable intelligence, and facing off against America’s enemies at every turn. And then...news of a potentially devastating coalition: What if two of the greatest threats to the security of the United States were to form an unholy alliance?