Set in the Pinwheel universe, where an alliance of friendly species fights a never-ending war against the merciless insect hordes, the mission to retake a lost colony is underway. The largest Coalition fleet ever assembled descends on the moon of Kerguela, where a peaceful civilization met its end at the hands of a marauding hive fleet three decades prior. Leading the campaign is Xipa, a survivor of the original invasion, bent on righting the wrongs of her past and avenging her fallen flock. When she intercepts a mysterious signal in orbit, she assembles a crack special forces team to scour the overgrown forests and abandoned cities for answers. Evan is a seasoned Marine, deploying as part of the ground invasion force. His armored battalion lands on the moon's surface, ready to face the Bugs head-on, but all isn't as it seems. In the thirty years since the moon was captured, its occupants have adapted to its environment and changed their tactics in unforeseen ways. Now, Evan and his comrades must face off against the hive's biomechanical terrors. The flames of war and passion rage around the moon, while conflict between both friend and foe strains the alliance to its limits.