At the end of the world, a groundbreaking scientific experiment will change everything. Dr. Laura Reynolds had it all. A job she loved. The respect of her peers. Student debt she was slowly chipping away at. And one day, it all went away. She saw the wrong thing—a colleague's mistake. And to escape, he framed her. Laura's only option is to join a secretive research project in Antarctica, where she hopes to keep practicing medicine and one day get her life back. But soon after arriving, she realizes that things aren't what they seem in this advanced facility.

Dr. Tyson Klein is a quantum physicist who has dedicated his entire life to his research. At CERN, he analyses data generated by the Large Hadron Collider, the world's biggest and most powerful particle accelerator. Now, Ty believes he's found a pattern in its output. It looks like an organised data stream, being broadcast over what he calls a quantum radio. Could it be a signal from another universe? A message sent from the future? Or something else entirely?

Dr. Sam Anderson is one of the most celebrated scientists in history. Ten years ago, he invented a device that changed the world forever. Now his life is about to be ripped apart—and his own creation may be to blame. One fateful morning, Sam discovers that his girlfriend has been murdered and that his daughter is accused of the crime. Sam believes she's innocent, but he can't prove it. There's only one thing he can do to save his daughter: confess to the crime. And so he does. But in the future, murderers aren't sent to prison. They're sent to the past.

The ice is coming. It was the last thing we expected, but the world is freezing. A new ice age has dawned. Billions have fled the glaciers. A cataclysmic war is coming. In orbit, a group of scientists are running the Winter Experiments, a last-ditch attempt to understand why the planet is cooling. None of the climate models they build make sense. But then they discover an anomaly, an unexplained variation in solar radiation...and something else. Close to the burning edge of the sun, they catch a fleeting glimpse of something that shouldn’t be there....

In Atlanta, Dr. Peyton Shaw is awakened by the phone call she has dreaded for years. As the CDC's leading epidemiologist, she's among the first responders to outbreaks around the world. It's a lonely and dangerous job, but it's her life - and she's good at it. This time she may have met her match. In Kenya, an Ebola-like pathogen has infected two Americans. One lies at death's door. With the clock ticking, Peyton assembles her team and joins personnel from the Kenyan Ministry of Health and the WHO.

Geophysicist Jack Greer believes he may finally have found the resting place of the meteorite that wiped out the dinosaurs 65 million years ago. A few miles off the Yucatán coast, Jack and a team of scientists tow an aging drilling platform over the impact crater with the aim of securing a sample. But buried deep beneath the earth lies a shocking discovery that threatens to shatter everything we think we know about our species.

In Antarctica, a research expedition discovers an ancient structure buried deep in the ice. In Indonesia, a genetics researcher identifies a breakthrough treatment for autism. But these two incredible discoveries aren't what they seem. They will set off a race to unravel the deepest secrets of human existence—the true history of human origins. And an event that could change humanity forever.

Drake, a retired police detective, receives a call in the dead of night from an alien-obsessed podcaster. He hastily departs for Montana the following morning. The phenomenon continues all over the globe. What are they? What do they mean? Britt is on assignment for a digital magazine when she encounters one of the Glass in a tragic boating accident, leaving her no choice but to follow the lead. Panic ensues as mysterious creatures are sighted.

Noah Harris and Ashley Flynn are field agents for a powerful organization tasked with protecting humanity from the misuse of game-changing technology. But when they discover hidden portals that link Earth to numerous planets, they are thrust into a maze of deception and intrigue they can't begin to understand....one that not only has them battling for their very lives, but that will decide the fate of worlds. Because, inexplicably, each of the planets contain human civilizations, and the rulers of our nearest portal neighbor have come up with a brilliant, twisted plan to conquer ours.

Caesar, an undercover operative, enters Carmichael with the briefest of orders from his boss and a countdown on his phone. What will happen when the clock strikes zero? Deputy Amelia Miller is dispatched from a nearby city, and a series of events keeps her around much longer than she'd expected. In the middle of the night, something shifts, and the whole town disappears off the face of the Earth. Who caused the shift, and what lies beyond the veil of their settlement?