During a crowded service at a cathedral in Germany, armed intruders in monks' robes unleash a nightmare of blood and destruction. But the killers have not come for gold; they seek a more valuable prize: the bones of the Magi who once paid homage to a newborn savior...a treasure that could reshape the world.

High in Nepal, a monastery erupts with savagery and madness. Deep in a German mine, abomination wears the innocent face of a child. Hidden in the jungles of Africa, experiments rooted in a dark past have found fertile ground again.

Something is amiss on the open waters of the Indian Ocean. When a group of adventurers investigates a luminescent pool of water, they come in contact with a deadly organism risen from the depths. To combat this threat, Sigma Force races across the globe searching for a cure that may be hidden within humanity’s genetic code. But elements of an ancient conspiracy want the plague to spread, and they have a mole entrenched within Sigma Force.

In Washington, D.C., a homeless man dies in Commander Gray Pierce's arms, shot by an assassin's bullet. But the death leaves behind a greater mystery: a bloody coin found clutched in the dead man's hand, an ancient relic that can be traced back to the Greek Oracle of Delphi.

At Princeton University, a famed geneticist dies inside a biohazard lab. In Rome, a Vatican archaeologist is found dead in St. Peter's Basilica. In Africa, a U.S. senator's son is slain outside a Red Cross camp. The three murders on three continents bear a horrifying connection: all the victims are marked by a Druidic pagan cross burned into their flesh. The bizarre murders thrust Commander Gray Pierce and Sigma Force into a race against time to solve a riddle going back centuries.

Deep in the Rocky Mountains, a gruesome discovery - hundreds of mummified bodies - stirs international attention and fervent controversy. Despite doubts to the bodies' origins, the local Native American Heritage Commission lays claim to the prehistoric remains, along with the strange artifacts found in the same cavern: gold plates inscribed with an unfathomable script.

Galilee, 1025. A cunning Templar knight uncovers a holy treasure: the Bachal Isu - the staff of Jesus Christ - a priceless icon that holds a mysterious and terrifying power that will forever change humanity if unleashed. A millennium later, Somali pirates hijack a yacht off the coast of the Horn of Africa, kidnapping a young pregnant American woman and brutally killing her husband. Painter Crowe and his Sigma team are enlisted for the top secret rescue mission.

In 1074 BC, 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.

A construction project beneath the National Mall reveals a dark secret dating back to the Civil War, something buried by a cabal of scientists, led by Alexander Graham Bell, who helped found the Smithsonian Institution. It is a cache of bones, preserved in amber, protecting a wonder like no other, the very secret of life after death. But such a prize is guarded by a horror out of the ancient past, a horror that still lives in the marrow of those bones - and is now free again.

In the wilds of Mongolia, a research satellite has crashed, triggering an explosive search for its valuable cargo: a code-black physics project connected to the study of dark energy...and a shocking image of the eastern seaboard of the United States in utter ruin. At the Vatican, a package arrives containing two strange artifacts: a skull scrawled with ancient Aramaic and a tome bound in human skin. DNA evidence reveals that both came from the same body: the long-dead Mongol king Genghis Khan.

A series of strange events throws the world into turmoil. As a manned Chinese rocket explodes upon launch, three American astronauts, each separated by thousands of miles, are murdered. Then an archaeologist in Croatia uncovers a new cavern system that reveals elaborate primitive paintings by a tribe of Neanderthals.

Arriving home on Christmas Eve, Commander Gray Pierce discovers his house ransacked, his pregnant lover missing, and his best friend’s wife, Kat, unconscious on the kitchen floor. With no shred of evidence to follow, his one hope to find the woman he loves and his unborn child is Kat, the only witness to what happened. But the injured woman is in a semicomatose state and cannot speak - until a brilliant neurologist offers a radical approach to “unlock” her mind long enough to ask a few questions. 

A remote military research station sends out a frantic distress call, ending with a chilling final command: Kill us all! Personnel from the neighboring base rush in to discover everyone already dead - and not just the scientists, but every living thing for 50 square miles is annihilated: every animal, plant, and insect, even bacteria. The land is entirely sterile - and the blight is spreading. To halt the inevitable, Commander Gray Pierce and Sigma must unravel a threat that rises out of the distant past.

If the biblical plagues of Egypt truly happened—could they happen again—on a global scale? Two years after vanishing into the Sudanese desert, Professor Harold McCabe comes stumbling out of the sands, but he dies before he can tell his story. Then an autopsy uncovers a bizarre corruption: someone had begun to mummify the professor's body—while he was still alive. Subsequently, the medical team who had performed the man's autopsy has fallen ill with an unknown disease. Fearing the worst, a colleague of the professor reaches out to Painter Crowe, the director of Sigma Force. The call is urgent, for Professor McCabe had vanished into the desert while searching for proof of the ten plagues of Moses.

Travel to the bottom of the earth...to a place you never dreamed existed. Beneath the ice...a hand-picked team of specialists makes its way toward the center of the world. They are not the first to venture into this magnificient subterranean labyrinth. Those they follow did not return....