Slave-taking aliens invade the solar system and attack Earth to teach humanity it cannot overthrow the millennia-old system of Buyers, Market worlds, and Collector ships. Former SEAL Bill MacCarthy and Air Force captain Jane Yamaguchi lead America and the world in a fight against six invading Collector ships. But even with the help of two American subs and two small transports, their ship Blue Sky is badly outgunned. Can they win this fight? Or will they and all humans end up as slaves sold at the nearby Market world?

This tale gives retired Navy SEAL Bill MacCarthy his biggest surprise, bigger than being kidnapped by aliens! The Collector ship aliens he and Air Force captain Jane Yamaguchi defeated earlier now return to the solar system in a six-ship fleet armed to the teeth. Bill and Jane have just their single starship. The aliens plan to destroy Earth's space industry and capture hundreds of humans for sale to Buyers on distant stars. Bill and Jane discover that their first effort to subvert a galactic system of people Buyers, Market worlds, and Collector ships was not enough. Now they have to do more. That begins with getting the Joint Chiefs of Staff on their side as they figure out how to fight rampaging aliens. Their efforts eventually lead them to the nearest Market world where intelligent people are bought and sold into forced labor. A final confrontation with hundreds of Buyers puts the survival of humanity on the line!