2105, September: Intelligence Analyst Caine Riordan uncovers a conspiracy on Earth's Moon - a history-making clandestine project - and ends up involuntarily cryocelled for his troubles. Twelve years later, Riordan awakens to a changed world. Humanity has achieved faster-than-light travel and is pioneering nearby star systems. And now, Riordan is compelled to become an inadvertent agent of conspiracy himself. Riordan's mission: travel to a newly settled world and investigate whether a primitive local species was once sentient - enough so to have built a lost civilization.

Melanie Mooney thought she was just doing her job when she came upon an unusual accident in the deep woods late one night. Acting alone, what she found was nothing like she’d expected. What followed was even more unexpected. Recruited by emissaries of a galaxy-spanning civilization, Melanie is thrust into a world she thought only existed in supermarket tabloids. As the first human in the Galactic Union Medical Corps, she cares for extraterrestrials in desperate need of a medic who can ignore the fact that they’re nothing like any patient she’s ever seen, even on their best days.

Brad Mendoza is an idiot. He knows it, and so does everyone else. A promising naval career down the drain just, because he accidentally killed 504 civilians. So, it's time for him to give up and accept a dead-end command on Persephone, the worst ship in the fleet. Until he meets the beautiful and cunning Jessica Lin, his new executive officer, who harbors a terrible secret of her own. Now, he's in a race to save her and his stupid ship.

In the final days of the empire, Cyborg Corps Colonel Leonidas Adler plans to die in a manner befitting of an imperial officer. He will fight until his last breath, giving his life to defend Emperor Markus, as it was meant to be. But when the emperor himself summons him for a final special mission, how can he refuse?

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.