As gruff stationmaster turned U.S. Marshal Teaspoon (Anthony Zerbe) struggles to keep the peace, his Pony Express riders adjust to their new Rock Creek home, tangle with dangerous dirtbags, run into unexpected blasts from the past and fall in and out of love. In the third and final season of this Western television series, the gang welcomes a brash young troublemaker by the name of Jesse James (Christopher Pettiet) into the fold.