Pony Express rider Sunset Carson makes his last delivery, but instead finds the station attendant murdered and his letters stolen. Ambushed by masked men, he arrives at Big Rock Springs, where he apologizes for losing a letter, only to be offered a job at the Taylor ranch. As he investigates, he uncovers a plot by neighboring ranchers Spade Gilbert and Grand Dawson to sabotage the Taylor's chance at landing a Western Union project.
Deadline
A lone Pony Express rider uncovers a web of secrets while working on a telegraph line, only to be accused of murder when a crime is committed.
