Unverified reports tell of a hidden treasure trove deep beneath the Owl Mountains in Poland. Many have tried, but all have failed to locate the legendary Nazi gold train. Jack Reilly mourns the loss of his grandmother, a Holocaust survivor, and an esteemed historian. In memory of her, the retired Delta operator tours the place of her imprisonment, the Auschwitz-Birkenau State Museum, site of the infamous Nazi concentration camp.

Jacob Snow—elite soldier-turned-CIA agent, haunted by his tortured past—is one of the CIA’s greatest assets and is dispatched when the stakes are highest. When an ancient Egyptian relic goes missing under mysterious circumstances, Jacob knows this is no run-of-the-mill robbery: The relic holds a secret—one that could destroy everything.

Ripped from the headlines, the explosive Trackers saga is a realistic depiction of what an EMP attack and the aftermath might look like from one of the genre's leading voices, USA Today best-selling author and former Homeland Security disaster mitigation officer Nicholas Sansbury Smith. This box set includes the entire four-book Trackers series with over 30 hours of post-apocalyptic survival fiction and action. This box set includes Trackers, Trackers 2: The Hunted, Trackers 3: The Storm, and Trackers 4: The Damned.

It's easy to become invisible in the Florida Keys. Mac Travis was doing his best to keep a low profile: diving, fishing, and enough salvage work to pay his bills. It's a good life until he discovers something while spearfishing that could change the pristine Keys forever.

It takes a special sort of courage to serve in midget submarines, and Lieutenant David Seaton, commanding officer of XE16, needs no reminding of the perils involved. The little X-craft with their four-man crews have been used against heavy enemy surface units and important harbour installations. But in 1944, with the Allies poised for an invasion through France, a new and more hazardous role is given to Seaton's flotilla.

A secret buried in the Antarctic. A puzzle unsolved for thousands of years. And a Brooklyn-born master gunnery sergeant who's royally pissed that he has to babysit the researchers sent to figure it all out. But when Patrick "Wic" Finnegan finally sees what the team has uncovered, he can't believe his eyes, nor is he prepared for the violence to come. Soon, the portal opens and unleashes a storm of unbridled fury upon humanity.

Spain 1057: During a thunderous battle, the first King of Aragon wrestles Alexander the Great's priceless Egyptian weapon from the Moors, but finds it holds a terrifying and mysterious power. A thousand years later, gunshots and the sound of breaking glass rip through the silence. Maddy Marshall and her twin brother Will Argones, an engineer, quickly run toward the sound. Horrified, they discover a sniper's bullet has found its human target. Before the pool of blood on the living room floor is dry, the twins are sent on an arcane quest to recover Alexander's ancient weapon.

When elite Navy Seal Troy Stark is forced into retirement for his dubious respect for authority, he dreads the quiet life awaiting him with his brothers and buddies in Yonkers, New York. But the quiet doesn’t last long: The NYPD needs Troy’s military expertise to help find and stop a major terrorist threat to New York City. To pre-empt the attack, they need him to fly to Europe and stop it at its source—using any means necessary.

When an MI6 agent is found to be keeping records of his missions to protect himself from betrayal he unwittingly makes himself a priority target. But how do you silence the most dangerous man imaginable? Send him into hell on earth. While Alex King is sent into Northern Iraq to tidy the loose ends of a botched mission, the archipelago of Indonesia is under communist threat from within its own military. A consortium of worried businessmen call for desperate measures and seek the services of an assassin.

Heavy caliber cannon fire rips across the harbor of a remote South Atlantic research station. Worse is to come. When Argentinian forces launch a lightning strike against the Antarctic peninsular, only a single US Navy destroyer stands between them and the country's ambition to seize the continent's rich resources for herself. The USS Cunningham is sailing into hostile waters, untested, unsupported and far from home. But as the enemy will soon discover, the Cunningham is no ordinary warship, nor her Commander any ordinary Captain...

In 1521, the Aztec treasure, considered to be the greatest ever assembled, vanished from the capitol city of Tenochtitlan. Almost five centuries later, former Navy SEAL Logan Dodge finds a mysterious gold coin off of a secret ledge in the Florida Keys. When he learns the origin of the coin, he goes on a mission to find and secure the treasure for the people of Mexico. But he’s not the only one who’s caught the scent of gold. A notorious Mexican drug cartel known as Black Venom is right on his heels and will stop at nothing to take the treasure for themselves.

Operation Treadstone has nearly ruined Adam Hayes. The top-secret CIA Black Ops program trained him to be an all but invincible assassin, but it also cost him his family and any chance at a normal life. Which is why he was determined to get out. Working as a carpenter in rural Washington state, Adam thinks he has left Treadstone in the past, until he receives a mysterious email from a former colleague, and soon after is attacked by an unknown hit team at his job site.

Judge. Jury. Executioner. One man is taking the law into his own hands. His targets are the criminals who slipped through the justice system. Dangerous men. Violent men. Depraved, cold-blooded killers. From California to Texas, this relentless avenger hunts down the unpunished and sentences them to death. But now he's on Sonny Hawke's turf. A Texas Ranger committed to his job, Hawke will not abide vigilante justice - even if the targets deserve to die. With each murderous act of vengeance, the hunter becomes more like the vermin he's exterminating.

If anyone can smell an investment opportunity, it's railroad men and big city bankers. They're not the kind of folks that Sheriff Mackey is used to dealing with. But greed is greed, and if anyone knows how money can drive men to murder, it's the sheriff of a boomtown like Dover Station. But when Mackey is forced to gun down a pair of saloon rats, it brings a powderkeg of trouble - with a quick-burning fuse of vengeance named Alexander Duramont. This bloodthirsty psychopath wants to kill the sheriff for killing his buddies.

When a coordinated EMP attack takes out the nation’s power grid, a small town finds itself at ground zero of an all-out Russian invasion. With limited options and no time to prepare, the citizens have no choice but to turn to a mysterious drifter, Jack Bunker, for help. The former combat engineer has the skills to keep them alive, but he won’t be able to do it alone, not against an overwhelmingly superior force.