The mission is simple. Escort an emissary to an intergalactic peace summit. Try not to get in the way. Lt. Magnus and his 79th Recon Team have certainly handled worse, after all. But when an explosion rocks the tower and sends everyone into a panic, Magnus and his asset find themselves cut off from the rest of the team. Worse still, a dying alien chieftain gives them a priceless drive of intel, marking them for death. The mission has officially changed. With enemies on all sides, Magnus must do everything in his power to protect the emissary and escape the tower.

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....

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.

On December 21st, 2012, the world was supposed to end. When the apocalyptic date came and went, the world concluded the Mayan prophecy was a myth. But it was not. The Earth was saved by extraordinary intervention from planet Akara — home to an awakened civilization far more evolved than our own.

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?

While training for a manned mission to Mars, Dr. Sophie Winston and her team of scientists find themselves cut off from the rest of the world. Trapped inside a biosphere deep within the confines of Cheyenne Mountain, Sophie and crew discover they are the survivors of a brutal alien invasion. But as they struggle to stay alive, they realize their safe haven is far from safe and that they must team up with other survivors around the world to defeat the aliens before it’s too late for humanity and the Earth.

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.

Dr. Neil Anson Clemons was born at the very moment that men first landed on the moon and always strived to become an astronaut and reach the stars. Neil devoted his life to staying physically fit as any astronaut should be through martial arts and mentally fit by studying and becoming one of the world's foremost experts in quantum physics and gravitational theory. Now he and his team have achieved a breakthrough, both in building a warp drive, and finding a new energy source powerful enough to make the drive more than an interesting theoretical concept.

During the day, he’s a South Chicago high school janitor, slopping a mop around from nine o’clock to three o’clock, five days a week. At night, hiding out in a boarded-up factory, he attends to his damaged interstellar spacecraft, making repairs and counting the days until he can return to his homeworld of Calunoth. All he needs to do is mind his own business and avoid any messy human dramas for just a few more weeks. But it is on one of those quiet nights when he hears them outside: the MP140s. Named for a police radio code for murder, they're among the most ruthless killers.

When Malia Kwan exhibits unusual abilities, government agents show up at her home to apprehend her and her twin brother, Jaden - and all hell breaks loose. After their parents are killed, Jaden and Malia flee into the night, becoming fugitives. Before long, they discover their true identities are tied to the lost city of Atlantis - and to the origins of humanity itself. And now a threat emerges that could wipe out the entire human race - unless Jaden and Malia can stop it!

The distant future. Earth’s Alliance forces have emerged victorious from a brutal nine-year war with the mysterious Kastazi - a vicious, highly advanced alien race. In the dawn of a new peace, the Alliance Devastation Class starship California embarks on a mission of science and learning with a skeleton crew of seasoned officers, civilian students, and inexperienced military cadets in tow. For JD Marshall and Viv Nixon, gifted cadets and best friends, the mission holds special meaning: It offers an opportunity to prove themselves.

Humanity fights for its future as Godzilla and Kong embark on a path of destruction that will see the two most powerful forces of nature on the planet collide in an all-out war! Writer Greg Keyes returns once again to the Monsterverse and takes listeners deeper into the worlds of Monarch, the Titans, and so much more.

All Elliott Harkness wants is to be a superhero. His parents are superheroes. His older sister is a superhero. Heck, even his dog is a superhero. But Elliott has a problem - he’s a “zero”, which is super-speak for powerless! So, while his family is off fighting crime, Elliott is stuck muddling through middle school. But when danger strikes, and Elliott is Earth's last hope, will he find the power to be the epic hero he's always wanted to be? Or will he always be just an epic zero?

Liam Saunders-Chang is one of the last humans left on Mars. The son of two scientists who have been racing against time to create technology vital to humanity's survival, Liam, along with his friend Phoebe, will be on the last starliner to depart before Mars, like Earth before it, is destroyed. Or so he thinks. Because before this day is over, Liam and Phoebe will make a series of profound discoveries about the nature of time and space and find out that the human race is just one of many in our universe locked in a dangerous struggle for survival.

They’ve watched us for centuries through the Rift. They’ve prepared. Invasion is inevitable. The Earth Fleet has known of the Watchers for years, unwilling to share the knowledge with humanity. Now it might be too late. Hidden away from the Fleet, one man is creating a new colony ship destined for the other side of the Rift, but he’s missing a few pieces. Three other people have varied paths to get there. Ace goes from the streets of Earth to the Fleet training facility on the moon. Flint, an ex-Fleet pilot, must decide if a job is worth his life.