In 2554, the world is coming to its end, unless an impossible mission through 600 years of time travel succeeds. Maternal instinct knows no boundaries, including the nano-neural-net intravenously installed in Dannia Weston's mind to repress her identity, allowing her to perform a mission 300 years before her time. Transported to the year 1954, Dannia becomes a woman with a mid-twentieth century persona, college educated with an aptitude for mechanical invention. Due to her work during the war, she is employed by the U.S. government on a secret project.

But what no one knows—including Dannia or those who sent her back to tinker with the mechanical past to reduce future pollution—is what might happen should she become emotionally involved in 1954. The 2254 science team programmed the nano-net to prevent the possibility of pregnancy, but each person reacts to strong emotional stimuli differently, and using birth control not available in 1954 is out of the question. When Dannia falls in love with Peter Hersh and becomes pregnant, her hormones erode a small section of the nano-chained network that stabilizes her new identity, triggering a mild memory rebirth...and threatening her mission and the fate of the world.