Austin Stone always heard you can't go home again, but he is looking forward to his leave on Earth. Upon his arrival Austin is immediately thrust into danger as a shadowy force targets Star Runners and their loved ones on Earth in a series of violent attacks. After surviving an explosion on the streets of San Francisco, Austin rushes back to Georgia to secure the safety of his mother.

More than two centuries after World War III poisoned the planet, the final bastion of humanity lives on massive airships circling the globe in search of a habitable area to call home. Aging and outdated, most of the ships plummeted back to Earth long ago. The only thing keeping the two surviving lifeboats in the sky are Hell Divers - men and women who risk their lives by skydiving to the surface to scavenge for parts the ships desperately need.

The scum hiding deep inside the Reach out along galaxy's edge thought they could kill her and not pay the price. For years these hardened killers have run roughshod over the lawless worlds where Republic justice is never as fast as the blaster in your hand and where double-crosses and death are a part of every deal. They thought this time would be no different. They were wrong. This time, the Guild sent the legendary bounty hunter Tyrus Rechs. As the infamous Rechs pursues the men who murdered his colleague, he's hell-bent on justice.

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.

Across the six-planet expanse of the Gaia System, the Earthlike Gretia struggles to stabilize in the wake of an interplanetary war. Amid an uneasy alliance to maintain economies, resources, and populations, Aden Robertson reemerges. After devoting fifteen years of his life to the reviled losing side, with the blood of half a million casualties on his hands, Aden is looking for a way to move on. He’s not the only one. A naval officer has borne witness to inconceivable attacks on a salvaged fleet. A sergeant with the occupation forces is treading increasingly hostile ground.

Two centuries after humanity colonized the stars, new dangers emerge. The peaceful inhabitants of the Conclave are threatened by expanding alien powers. Invaders threaten the star cluster, attacking our fringe settlements. Captain Bill Gorman has mysteriously disappeared. His clone, set aside for a dark day like this, awakens and begins to put together the pieces. What’s gone wrong out on the frontier? Why are our colonies being attacked by aliens while the Conclave worlds dream of better days? And what happened to the original Captain Gorman?

Iron Man and Captain America are two core members of the Avengers, the world's greatest superhero team. But when a tragic battle blows a hole in the city of Stamford, killing hundreds of people, the US government demands that all superheroes unmask and register their powers. To Tony Stark - Iron Man - it's a regrettable but necessary step. To Captain America, it's an unbearable assault on civil liberties.

When starship mechanic, Denton Castus, is caught in the destructive path of a devastating war, he abandons his home and seeks refuge on a distant planet. However, this new safe haven has undiscovered threats of its own. Eliana Veston, a scout preparing the planet for the refugees, struggles with a deadly pandemic that is killing off colonists. The hunt for a cure unleashes a new threat to humanity - the Sirens - mysterious beings with incredible powers and a deep hatred for invaders.

Phoa was terraformed by nanite swarms for Earth's colonists to create a beautiful, habitable world. But the swarms evolved, overran the planet, and two centuries later, threaten every living thing remaining on it. Reyes, a scientist from Phoa's last colonial enclave, and Thanata, a bioengineered hunter from a rival tribe, must work together to halt the Green: the massive swarm that absorbs plants, animals - even entire cities. But if the unlikely pair hopes to survive the mutated wilds and the deadly Green, they'll have to learn to understand each other.

Jason Grimshaw has one job. Get the cadets to Colony 115. Just another day. Just another milk run. Or so he thought. When scanners pick up an unidentified alien vessel, it's already too late. With his ship blown out from under him, and his crew scattered across a war-torn planet, his day just keeps getting better. The good news is, one of the pilots survived. The bad news is, it's the biggest pain in his ass, and she's stranded miles away.

The United Nations of Earth sent out the Forerunner ships to explore and colonize the four most promising star systems within 50 light-years of Earth. Forerunner One left Earth under the command of Captain Clayton Cross, heading for Trappist-1. After a ninety year journey to reach it, the crew encountered not only a habitable world, but alien life already inhabiting it, and dark secrets lurking beneath the surface. The revelation of who these aliens are and what they want proves more terrifying than promising, and Captain Cross is forced to make tough decisions that will affect not only his crew, but the fate of the entire human race.

Soldiers of the Terran Armor Corps wage war across the stars. Wired into mechanized battle suits, they fight the terrifying battles that must be won, no matter the cost. Their deeds are legend, their reputation feared by the enemies of Earth and her allies, but how the Corps forges young men and women into mighty warriors is shrouded by mystery. Roland Shaw lost his parents to war; he volunteers for the Armor Corps to honor their memory and discover just how far he can push himself.

The interstellar bridges provide a lifeline for billions. To save humanity, the Darkspace Renegades must tear them all down. Unjustly kicked out of the Consortium Security Force, Hallam Knight has been reduced to working as a gunner, defending the precious Randenite fuel tankers from notorious extremists, the Darkspace Renegades. Then, he discovers that everything he thought he knew was a lie. Far from being the enemy, the Darkspace Renegades are humanity’s only hope.... They just don’t know it yet.

Ethan is a ranger, sworn to protect his walled settlement from the dangers of his ravaged wasteland planet. One night, a mysterious light thunders overhead and Ethan investigates, discovering a crashed spacecraft and two soldiers from a moon base he didn’t even know existed. Captain Salus and Commander Kurren have risked everything to find a Planetsider to help save their people. Ethan needs them to answer questions that have haunted him all his life – what happened to his world and why?

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.