A hired gun delivers frontier justice on a colony world. The man called Twelve is a hired gun, taking his laser pistol from planet to planet, hiring his services out to the highest bidder. He finds himself on Glycon-Prime, a new colony at the edge of space. On the hunt for work, Twelve blows into a small, frontier town-only to find a massacre. The only survivors? A trio of young children, devastated by the murder...