Persons not known is a American mystery drama tv show which revolves around strangers that are imprisoned in a ghosttown that is little. The thirteen-episode summer show proved on June 7, 2010 in 10:00 p.m. on NBC. On June 30, NBC moved the show to 8:00 p.m. on Saturday out of its Monday timeslot. It completed its run on August 28, 2010. The show was canceled shortly thereafter.