A product of an illegal pairing, Eridani is the only woman without a lifemate aboard the colonization ship, the Heritage, and she is determined her less than perfect DNA will not get in the way of finding love. As the ship nears its final destination of Haven 6 after five hundred years of travel, images of the surface show evidence of intelligent life on a planet that's supposed to be uninhabited. Commander Grier assigns Eri to the exploratory team to spy on the alien society and return with information on how to defeat them.

When Eri's team lands, tribes of humans attack and Eri is saved by Striver, the descendant of a colonist and a pirate from Old Earth's colonization efforts in other parts of the galaxy. Striver helps Eri rescue her team and they are drawn to each other despite their different allegiances. While Striver battles with trusting Eri, Eri must decide whether to warn him and his people about the commander's intentions, or follow orders and complete her mission.