The Lone Ranger -The Lone Ranger's Triumph S01 E03

The Lone Ranger and Tonto try to get help, but the sheriff's men are in cahoots with Cavendish. Acting alone, the two heroes go back and rescue the sheriff and the town doctor (who had patched up Cavendish's bullet wound) from Cavendish. The Ranger has a plan: with the doctor's help, they quietly round up all the men who had replaced the murdered officials. The next day, Cavendish and the rest of his gang ride to Colby, fully expecting to take over the town, but find the heroes and a posse blocking their way; during the fight, the Ranger chases and catches Cavendish.
Now that the entire gang is in jail, the Ranger decides to keep wearing his mask and fighting criminals.