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.

After a mysterious global event known only as “The Change”, six strangers wake up in an underground research facility where they learn that they’re part of the Extinction Trials - a scientific experiment to restart the human race. But the Extinction Trials harbors a very big secret. And so does the world outside.

Alec works in the Detroit Overseer-factories, building a mysterious alien device. When three strangers appear, he's provided an opportunity to escape after years of servitude. Cole, a Freeborn loner, encounters Lina after her village is destroyed by the alien Occupation. Together, they make the arduous journey to a fabled safe-zone, trying to stay one step ahead of the enemy drones on their trail. Dex is a Hunter, working for the Occupation to track down escaped factory slaves, or Roamers, at all costs. But his latest hunt uncovers a massive secret.

When Russ Wesley finds an unusual artifact in his grandfather’s collection of rare antiquities, the last thing he expects is for it to draw the attention of a ferocious alien from a distant planet. Equally surprising is the adventurous team of intergalactic exterminators dispatched to deal with the alien threat. They’re a little wild, and a little reckless. Worse yet, they’re so impressed with Russ’s marksmanship that they insist he join their squad . . . whether he wants to or not.

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.

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.

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....

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.

When an experiment to study quantum uncertainty goes spectacularly wrong, physics student Bill Rustad and his friends find that they have accidentally created an inter-dimensional portal. They connect to Outland - an alternate Earth with identical geology, but where humans never evolved. The group races to establish control of the portal before the government, the military, or evildoers can take it away. Then everything changes when the Yellowstone supervolcano erupts in an explosion large enough to destroy civilization and kill half the planet.

The Hundred Worlds have withstood invasion by the relentless Hok for decades. The human worlds are strong, but the Hok have the resources of a thousand planets behind them, and their fleets attack in endless waves. The long war has transformed the Hundred Worlds into heavily fortified star systems. Their economies are geared for military output, and they raise specialized soldiers to save our species. Assault Captain Derek Straker is one such man among many.

Rose Winter has enough problems. With a marriage going down the tubes and a dreaded anniversary party on the horizon, the last thing she needs is the zombie apocalypse. She wanted to get drunk and sing karaoke, not murder her undead neighbors. It’s clear the party’s over, however, now Rose has more problems - a missing husband, an overbearing houseguest, and keeping her family alive.

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.

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.

When a high-ranking officer gallops into the quiet Mistyvales, he brings a warning that shakes the countryfolk to their roots. But for Aedan, a scruffy young adventurer with veins full of fire and a head full of ideas, this officer is not what he seems. The events that follow propel Aedan on a journey that only the foolhardy or desperate would risk, leading him to the gates of the nation's royal academy - a whole world of secrets in itself. But this is only the beginning of his discoveries.

Jack Kernigan is having a bad day...a bad year...a bad life. After being booted out of MIT, he’s back in his Ohio hometown, working for the family business, facing a life of mediocrity. Then one day, out on a delivery, his truck hits...something. Something big...something furry...something invisible. And, it turns out, something not of this Earth. Fate can play funny tricks. Which is why Jack suddenly finds himself the planet’s best hope to unravel a conspiracy of galactic proportions that could spell the end of the human race.