At fifteen, Rho'naa enrolls at the Institute of Defense. During her time at the institute she undergoes intense physical training, schooling and surgical alterations. Now, five years later, she is graduating and has become a highly intelligent and deadly biological killing machine. Just before her graduation, her best friend is taken captive. Rho'naa's first assignment is to rescue her. A team is formed to accomplish that rescue and she is put in charge. One member of that team is of the Men-gar species, humanities dread enemy. Although half Men-gar herself, Rho'naa has grown up loathing Men-gar with every fiber of her being. Will she work with him, or will she kill him? To make the situation worse, a new and terrible danger has arrived in the universe. A threat that may result in the extinction of both Human and Men-gar.