S1·E25 The Border Between

While returning from Mexico with a prison escapee, Marshal Fry and Clay McCord are ambushed by a Mexican landowner whose daughter, Felipa, has been kidnapped by an American miner from Leadville, Evan Sloate. The landowner vows to kill Fry unless McCord can return Felipa. McCord rides to Leadville and is directed to Sloate's mine by Lorrie, Sloate's discarded girlfriend. McCord gets a job in the mine and makes contact with Felipa but their conversation is interrupted by the jealous Sloate. Sloate flogs McCord and orders him off his property but McCord sneaks back and rescues Felipa. Sloate soon catches up with them. Before he can shoot McCord, however, Felipa shoots her kidnapper. The Mexican then gets his daughter back, Fry is freed, and he and McCord resume returning that escapee to prison.