Leandra and Harlan will brave the unknowns of space, do anything to preserve the human race, if they don't kill each other first. Leandra Richards receives the call to save the human race, or at least the human genome. She's not an astronaut, she's a genetic engineer-one of the best in her field, and one of the youngest. She's prepared to risk the dangers of life in space, supporting the terra farming mission-humanity's last chance for survival. At least she is until she finds out Harlan Johnson will be on the same ship. Harlan may be the only zoo archeologist under thirty-five, but he's a lying jerk. Leandra has personal experience as proof. Very personal. Before she can make arrangements to move to another team, the launch day moves up and she has to choose to give up on humanity or board a ship with her sworn enemy-an enemy who may not be above sabotaging her lab even with everything at stake. Keeping an eye on Harlan isn't exactly a hardship, but keeping her heart in check could prove impossible.