A military unit is thrust back into Paleolithic times with only their guns and portable hardware. Ten soldiers on convoy in Afghanistan suddenly find themselves lost in time. Somehow they arrived in Earth's Paleolithic Asia. With no idea how they arrived or how to get back, the shock of the event is severe. They discover groups of the similarly displaced: imperial Romans, Neolithic Europeans, and a small cadre of East Indian peasants.

When CIA Special Operations officer Major Jim Carter is sent to the town of Serene, Texas, he's still grieving for Agent Cathy Abbey, who was not only a fellow agent—but the woman he loved. And the woman he chose to shoot rather than let Al-Shabaab insurgents abduct her. A decision that haunts him. When Carter arrives in Serene, it's to discover that all one hundred and twenty-one citizens of the town have been murdered by insectoid creatures assumed to be extraterrestrials. None of the authorities know how the aliens arrived on Earth or what their intentions are.

World War III is a month old. After attacking and sinking the Destroyer USS Stacy Heath, the Chinese invade Tibet, and India counterattacks. Rather than allow the Chinese to seize control of the subcontinent, the US sends 20,000 US soldiers and Marines in to join the fight. The Russians invade Ukraine, which leaves NATO with no choice but to respond. A full-fledged ground war begins.

In a crumbling futuristic society, Earth is only a myth, the technological advances of centuries have faded into distant memory, and space travel depends on a fleet of run-down, unreliable ships. Only the brave-or foolhardy-undertake such risky journeys. The brave, the foolhardy-and the runners… Jak Rebo is one such runner, whose current job is to deliver a future religious leader to his people, while avoiding assassins.

Convicted of a crime he did not commit, Jonathan Renn is sentenced to life in the Swamp, a prison-planet death row in a distant galaxy. Renn only has two choices: Escape the Swamp or die in the process. Defending himself from attacks by deadly, native monsters and his fellow convicts, Renn is obsessed with escaping the planet and getting his revenge on the people who set him up. Marla Marie Mendez is even more down on her luck. Trapped inside a cybernetic dog and dropped defenseless into the Swamp, Marla can only rely on Renn and her claws to save her from the unfriendly elements.

In the 20th century Earth sent probes, transmissions, and welcoming messages to the stars. Unfortunately, someone noticed. The Galactics arrived with their battle fleet in 2052. Rather than being exterminated under a barrage of hell-burners, Earth joined their vast Empire. Swearing allegiance to our distant alien overlords wasn't the only requirement for survival. We also had to have something of value to trade, something that neighboring planets would pay their hard-earned credits to buy. As most of the local worlds were too civilized to have a proper army, the only valuable service Earth could provide came in the form of soldiers....

From the Audie-nominated narrator of The Martian. In eleven years' time, a million members of an alien race will arrive at Earth. Years before they enter orbit, their approach will be announced by the flare of a thousand flames in the sky, their ships' huge engines burning hard to slow them from the vast speeds needed to cross interstellar space. These foreboding lights will shine in our night sky like new stars, getting ever brighter until they outshine even the sun, casting ominous shadows and banishing the night until they suddenly blink out.

Kyle Riggs is snatched by an alien spacecraft sometime after midnight. The ship is testing everyone it catches and murdering the weak. The good news is that Kyle keeps passing tests and staying alive. The bad news is the aliens who sent this ship are the nicest ones out there.

One starship will either save Earth or destroy her. A century ago our star erupted, destroying Earth's wormhole network and closing off trade with her colonized planets. After being out of contact with the younger worlds for so many years, humanity is shocked when a huge ship appears at the edge of the solar system. Our outdated navy investigates, both curious and fearful. What they learn from the massive vessel shocks the planet.

They hunt us. They bomb our worlds for target practice. A star cluster in the constellation of Orion rotates once every 1,000 years. Those who rule there have an ancient tradition: When each cycle ends, they train their fleets by spilling the blood of lesser beings. The enemy fleets are coming again. In response, the Rebel Worlds gather their starships to face the terrifying threat, and this time humanity is asked to stand with them. The last time they considered Earth, Vikings in longboats were raiding English coastlines. Today, we're less primitive. Today, we're a target.

After discovering a cache of Prothean technology on Mars in 2148, humanity is spreading to the stars---the newest interstellar species, struggling to carve out its place in the greater galactic community. On the edge of colonized space, ship commander and Alliance war hero David Anderson investigates the remains of a top secret military research station---smoking ruins littered with bodies and unanswered questions. Who attacked this post, and for what purpose?

On June 30, 1908, an object fell from the sky, releasing more energy than a thousand Hiroshima bombs. A Siberian forest was flattened, but the strike left no significant crater. The anomaly came to be known as the Tunguska Event, and scientists have never agreed whether it was the largest meteor strike in recorded history - or something else. Alien artifacts have been uncovered since the 1908 event, and a new star drive is discovered.

Earth is conquered. The Shongairi have arrived in force, and humanity’s cities lie in radioactive ruins. In mere minutes, over half the human race has died. Master Sergeant Stephen Buchevsky, who thought he was being rotated home from his latest tour in Afghanistan, finds himself instead prowling the back country of the Balkans, dodging alien patrols and trying to organize the scattered survivors without getting killed.

Heir to one of the leading "Four Horsemen" mercenary companies, Jim Cartwright is having a bad year. Having failed his high school VOWS tests, he's just learned his mother bankrupted the family company before disappearing, robbing him of his Cavalier birthright. But the Horsemen of eras past were smart - they left a legacy of equipment Jim can use to complete the next contract and resurrect the company.

Five short novels by five masters of military science fiction. It’s a war out there. In these pulse-pounding tales, the best (or worst) soldiers in the galaxy are pitted against powerful aliens on distant battlefields. Never-before-published stories about monsters, deadly combat tech, treachery, and honor.