In the year 2000, Melly and Anny Beth are near the end of their natural lives when they are selected to participate in Project Turnabout. Turnabout's injections make them grow younger, though at some point, all the participants are to receive another injection that will stop the unaging process. But it turns out there's a catch: Everyone who receives the second shot dies. So Melly and Anny Beth flee the project and survive on their own as their lifespans reverse. By 2085, the pair is in their teens, and it's only a matter of time before they'll need a caretaker. With a reporter on their trail and their old memories fading fast, they desperately need to find someone they can trust with the truth--before they're too young to talk.