Frontier Agent

This one begins after the Civil War when the Overland Telegraph Company is persuaded by rancher Jim Kerrigan to allow his own men to extend the line to Baxter Springs, guaranteeing to pay for the construction himself if it isn't finished at the end of two months. Land promoter Burton Wheelock will lose money if the line is completed and gets ex-rustler Larry Foster, fiancée of Sandra Kerrigan, to sabotage the work. (imdb)