A ground war on Mars. No end in sight.

After the fall of Phobos, humanity’s life-or-death struggle against the PLAN has slowed to a bloody slog across the wastes of Mars. Slaughtering Martians is all in a day’s work for combat robot operator Jennifer Colden. But every kill takes a toll on her humanity.

A crisis erupts in the Olympus Mons sector …

As danger engulfs Earth’s troops, an NGO employee and a spy, stranded behind enemy lines, hike desperately towards safety. Colden’s team is dispatched to rescue the pair, striking deep into unknown territory.

The truth about the PLAN is exposed at last.

A grisly discovery at the foot of Olympus Mons shatters Colden’s expectations. She thought she was ready for anything. But is she ready for the most dangerous job on Mars: the role of protector?

The PLAN will not be complete until the last human dies.

If you love The Expanse and the sci-fi novels of Iain M. Banks and Charles Stross, you’ll love the Sol System Renegades series, a seven-book space opera epic packed with excitement, heartbreak, and unforgettable characters. Set in a colonized solar system under threat, this sprawling saga moves from the inner planets to the asteroid belt and beyond, as humanity prepares to confront our ultimate enemy on Mars. From a New York Times bestselling author.