Logan's Run is the first in a trilogy, the last two books, Logan's World, and Logan's Search, written by Nolan alone. The first book is set in the 23rd century, where Logan-6 is a trained killer, who tracks down and kills citizens on the run from their impending death. He has one last mission before he turns 21: finding and destroying Sanctuary, a mythical place where the "runners" live in peace. But Logan does what men have a habit of doing that gets in the way of their plans - falls in love with Jessica, and begins to question the system he has been protecting. They go on the run.