When Kurt Austin and Joe Zavala investigate a mass stranding of aquatic life in the Indian Ocean, they accidentally uncover a much deeper mystery. A strange figure soon steals NUMA’s findings, forcing a high-speed chase. Someone really didn’t want them examining those dead whales. A cryptic text through the NUMA satellite network makes things still stranger. These odd phrases and numbers look like NUMA codes. But who could be tantalizing the crew with such specific knowledge of their tech? Are they being helped by an old friend, or lured into a trap by a traitor who knows a little too much about NUMA’s inner workings? Kurt, Joe and even Max, the agency’s supercomputer, will have to investigate like never before as they decrypt data, infiltrate a cult of cloned men, and prepare for a battle on two very different planes: one physical, one digital.

On a NUMA training mission in the Caribbean, Kurt Austin and Joe Zavala catch a distress call from a nearby freighter. Leaping into action, they locate a damaged vessel and a dead captain clutching a shotgun. While searching the freighter for clues, Kurt and Joe are ambushed by crew members who seem terrified and disoriented, almost brainwashed. The trawler they were hauling has vanished, taken --- the men say --- by baffling lights that circled the ship. Kurt and Joe deduce that the men are suffering from Havana Syndrome, which deepens the mystery and raises the stakes. Soon they’re confronting Cuban mercenaries who plan to use magnificent modern airships to hijack a nuclear submarine --- culminating in a life-or-death showdown in the skies.

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. With no allies except a group of pirates who operate under their own crude laws, Kurt and Joe must rescue a colleague held hostage --- while keeping the computers out of Russian or Chinese hands and the world’s digital information safe from the hackers.

In the early days of World War II, the infamous German Luftwaffe embarks upon an expedition to Antarctica, hoping to set up a military base to support their goal of world domination. Though the military outpost never comes to fruition, what the Nazis find on the icy continent indeed proves dangerous...and will have implications far into the future. In the present day, Kurt Austin and his assistant, Joe Zavala, embark for the freezing edge of the world after a former NUMA colleague disappears in Antarctica. While there, they discover a photo of the Luftwaffe expedition of 1939, and are drawn into a decades-old conspiracy. Even as they confront perilous waters and frigid temperatures, they also are up against a terrifying man-made weapon --- a fast-growing ice that could usher in a new Ice Age.

In 1074 B.C., vast treasures disappear from the tombs of Egyptian Pharaohs. In 1927, a daredevil American aviator vanishes on an attempted transcontinental flight. And in the present day, a fishing trawler --- along with its mysterious cargo --- sinks off the coast of Scotland. How are these three mysterious events connected? And, more importantly, what do they mean for Kurt Austin and his NUMA team? As they search for answers, the NUMA squad join the agents of the British MI5 to take on a wide-reaching international conspiracy. Their common enemy is the Bloodstone Group, a conglomerate of arms dealers and thieves attempting to steal ancient relics on both sides of the Atlantic.

After an explosion in the Gulf of Mexico destroys three oil rigs, Kurt Austin and the NUMA Special Projects Team are tapped by the President of the United States to find out what's gone wrong. The trail leads them to a brilliant billionaire whose goal is the end of the oil age; her company has spent billions developing the world’s most advanced fuel-cell systems. The NUMA crew discovers that the oil fields are infected with bacteria that are consuming the oil before it can be pumped out of the earth --- a bacteria originally lost decades ago when two submarines vanished in the Mediterranean. With hired killers on his trail, can Kurt Austin locate a submarine that's remained hidden for more than 50 years?

An alarming rise in the world's sea levels sends Kurt Austin, Joe Zavala and the rest of the NUMA scientific team rocketing around the globe in search of answers. What they find at the bottom of the East China Sea, however, is even worse than they imagined: a diabolical plan to upset the Pacific balance of power --- and in the process displace as many as a billion people. A rare alloy unlike anything else on earth, a pair of 500-year-old Japanese talismans, an assassin so violent even the Yakuza has disowned him, an audacious technological breakthrough that will become a very personal nightmare for Kurt Austin --- the NUMA team must risk everything to head off the coming catastrophe.

When the most advanced aircraft ever designed vanishes over the South Pacific, Kurt Austin and Joe Zavala are drawn into a deadly contest to locate the fallen machine. But they know what others don’t --- that the X-37 is carrying a dangerous secret, a payload of exotic matter, extracted from the upper reaches of the atmosphere and stored at a temperature near absolute zero. As long as it remains frozen, the cargo is inert, but if it thaws, it will unleash a catastrophe of nearly unthinkable proportions. The entire NUMA team will risk everything in an effort to avert disaster…but they may be caught in a race that no one can win.

Kurt and Joe tangle with the most determined enemy they’ve ever encountered when a ruthless powerbroker schemes to build a new Egyptian empire as glorious as those of the Pharaohs. A devastating weapon at his disposal may threaten the entire world: a plant extract known as the black mist, rumored to have the power to take life from the living and restore it to the dead. Kurt, Joe and the rest of the NUMA team will have to fight to discover the truth behind the legends. But to do that, they have to confront in person the greatest legend of them all: Osiris, the ruler of the Egyptian underworld.

When Kurt Austin is injured attempting to rescue the passengers and crew from a sinking yacht, he wakes with fragmented and conflicted memories. Determined to know the truth, he begins to search for answers, and soon finds himself descending into a shadowy world of state-sponsored cybercrime and uncovering a pattern of vanishing scientists, suspicious accidents, and a web of human trafficking.

Zero point energy is a state of energy contained in all matter everywhere. Nobody has ever found a way to tap into it --- until one scientist thinks he discovers a way. The problem is, his machines also cause great earthquakes, even fissures in tectonic plates. One machine is buried deep underground; the other is submerged in a vast ocean trench. If Kurt Austin, Joe Zavala and the rest of the NUMA team aren’t able to find and destroy them, the world will be on the threshold of a new era of earth tremors and unchecked volcanism.

In the middle of the Indian Ocean, a NUMA research vessel is taking water samples at sunset, when a swarm of black particles suddenly attacks the ship, killing everyone aboard. A few hours later, Kurt Austin and Joe Zavala are on their way to the Indian Ocean. What they will find there on the smoldering hulk of the ship will eventually lead them to the discovery of the most audacious scheme they have ever known.

When two ships burst into flames in the same location, Kurt Austin and the rest of the NUMA Special Assignments Team rush to the eastern Atlantic region to investigate --- and find themselves drawn into an African dictator’s complex plot to extort the world’s major nations.