A Nazi war criminal believed to have been executed years ago is seen very much alive in Hamburg. When Lieutenant Hank Jefferson, US Navy, goes missing, the Admiralty, already troubled by disturbing rumors of Nazi resurgence, know just the man to find him. 

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.

Over the course of five combat patrols during the Pacific War, Commander Fluckey reinvented submarine warfare, pioneering audacious strategies to hunt and sink Japanese warships and merchant vessels. At the helm of the USS Barb, he directed his boat to attack warship convoys - never mind the lop-sided odds - and to slip into heavily defended enemy harbors to launch torpedoes at unsuspecting targets. 

A freighter carrying top-secret computers of unparalleled capability disappears in the Western Pacific. While searching for a lost treasure that once belonged to the famous Chinese pirate queen, Ching Shih, Kurt Austin and Joe Zavala are redirected to look for the missing vessel. Discovering that the sinking of the ship is just part of an intricate web of deception, they find themselves in the middle of a cyber-war between rival groups of hackers, both of whom want to control the flow of data around the world.

Court Gentry is known as The Gray Man—a legend in the covert realm, moving silently from job to job, accomplishing the impossible, and then fading away. And he always hits his target. But there are forces more lethal than Gentry in the world. And in their eyes, Gentry has just outlived his usefulness. Now, he is going to prove that for him, there's no gray area between killing for a living-and killing to stay alive.

The accident changed everything...One moment, Lieutenant Jake Slate was going about his duties aboard the ballistic missile submarine, USS Colorado. The next second, he was sprawled on the deck plates in a spreading puddle of blood and hydraulic fluid. But it wasn't the injury that ruined his life and doomed his military career. It was the rescue effort. Now he's being thrown to the wolves to cover up the misdeeds of a superior officer, and Jake doesn't care for the role of sacrificial lamb.

Juan Cabrillo's first adventure with the Oregon - a state-of-the-art spy ship disguised as a nondescript lumber hauler - takes him and his crew into dangerous waters as they try to put Tibet back in the hands of the Dalai Lama by striking a deal with the Russians and the Chinese.

Lieutenant Anthony Pacino reports aboard the “project boat” USS Vermont two years after having survived the catastrophic sinking of the Piranha. Pacino quickly learns that Vermont’s missions are all ultra-secret with the boat reporting only to the sub force commander, the national security advisor, and the president: Vermont does the dirty deeds that need doing in deadly silence and obscurity. After Vermont misses the mark on an easy mission, there are questions asked about her ability to conduct the next mission.

Under the leadership of her fearless skipper, Captain Gene Fluckey, the Barb sank the greatest tonnage of any American sub in World War II. At the same time, the Barb did far more than merely sink ships-she changed forever the way submarines stalk and kill their prey.

This is a gripping adventure chock-full of "you-are-there" moments. Fluckey has drawn on logs, reports, letters, interviews, and a recently discovered illegal diary kept by one of his torpedomen.

She was a monster, sleek and gleaming, designed to strike without warning like the dreaded shark. She was the USS Mako, as fearless and bold as any submarine that ever prowled the blue Pacific. Her mission: seek out and destroy the hitherto invincible ships of the Japanese Imperial Navy - and revenge the earlier defeats of a long and dirty war. Here is the story of the men who pitted their lives against impossible odds in the most dangerous branch of the American armed services.

The moment Navy SEAL sniper Finn sets foot on the USS Abraham Lincolnto hitch a ride home from the Persian Gulf, it’s clear something is deeply wrong. Leadership is weak. Morale is low. And when crew members start disappearing one by one, what at first seems like a random string of suicides soon reveals something far more sinister: There’s a serial killer on board. Suspicion falls on Finn, the newcomer to the ship. After all, he’s being sent home in disgrace, recalled from the field under the dark cloud of a mission gone horribly wrong.

In the latest riveting adventure in the bestselling Op-Center series, this crack team of operatives uses their defense, intelligence, and crisis management technology to bring down the opposition. When a job is too dirty or too dangerous, Op-Center is the only place the government can turn. Follow the circuitous path as the agents negotiate the most devious threats to the peace and prosperity of America - including those within. As with all Clancy's work, this series reminds us that true heroes are hard to come by, that even the best of us have compromising motives....

Don Riley, head of the CIA’s Emerging Threats Group, has never seen anything like this. Riley and his team are tasked with identifying national security threats before they become tomorrow’s bad news. But shortly after an Iranian vessel delivers a surprise attack to a US Navy Warship in the Arabian Gulf, a series of seemingly unrelated attacks crop up around the globe.

Lieutenant Mike Nicholson is operating out of Malta. Captaining the submarine Ursa, he's part of the fleet deputed to disrupt the flow of war supplies from Italian ports to Rommel's Afrika Korps. Although Ursa is small, under armed and frustratingly slow, she succeeds, on her 17th Mediterranean cruise, in sinking a German tank-transporter. That triumph puts Mike at the top of the league - he has now sunk more tonnage than any of his contemporaries.

At the top of the world… at the bottom of the sea… a war has begun. Below the polar ice cap, an American nuclear submarine moves quietly in the frigid water, tailing a new Russian sub. But the usual, unspoken game of hide-and-seek between opposing captains ends when the Americans hear sounds of disaster and flooding, and the Russian sub sinks at a depth of a thousand feet. The American sub rushes to help, only to join its former quarry in the deep. The situation ignites tensions around the world.