In the early years of the third millennium, an alien ship lands in the New Mexico desert. Its occupants are a mysterious, yet peaceful, life form known as the Holn. After a six-year stay, during which thousands of curious humans flock from all over the world to visit the spacecraft- turned- museum, the Holn depart suddenly, leaving behind 17 teens who had, until that morning when they entered the alien craft, been adults. Now, with complete memories of their former adult lives, they struggle to come to terms with this unasked-for "gift".