Law Comes to Scorpion - S5.E4

Gene is in charge of escorting a stage to San Dimas, because all the other runs have been cancelled because of an Apache uprising. The stage holds Captain Randy Jones, and a entertainer named Della Dix, who is carring a fortune in her jewelry. The other passengers are Cliff Barton (her body guard), and Pat, who is heading to recover his stolen mule, Mike. Along the way, they are ambushed by a band of Apaches, and two masked outlaws, who run off with Diamond Della's jewelry. Gene chases after the outlaws, learning that Cliff hired them, but double-crossed them with fake jewelry, while he got away with the real jewelry. Gene tracks him down, and brings him in, Captain Jones stops the Indian war, Diamond Della, is back on stage, and Pat is reunited with his noble steed.