Ned Jenkins, the banker of El Pass is dead and Joe Purdy is the primary suspect. The Lone Ranger knows Joe is innocent but has a plan to put his 14 year old nephew Dan in prison who looks a lot like Joe. The man they believe behind it all is El Mundo, the most dangerous man the West has ever known.

Ned Jenkins, the banker of El Pass is dead and Joe Purdy is the primary suspect. The Lone Ranger knows Joe is innocent but has a plan to put his 14 year old nephew Dan in prison who looks a lot like Joe. The man they believe behind it all is El Mundo, the most dangerous man the West has ever known.

The Sheriff of El Pass and two deputies have arrived at the farm of Mrs Purdy. They want to talk to her son Joe and ask about a knife they recovered from the scene of a murder. Ned Jenkins, the banker of El Pass was found murdered and the stolen money is found in the coat of Joe Purdy.

Zeb Smith is dead after a visit to the strange temple under the desert near El Pass. Strange things happen to those who visit this temple. Myra Hawkins, the sister of El Mundo who built the temple is using the strange forces of the temple to fools its visitors into leaving their wealth to her.

Tonto rolled into the town of El Pass looking for Zeb Smith, but Zeb has lost his mind. Two days earlier Zeb visited a disputed strip of land between the US and Mexico where a temple was built by the Mayans under a man named El Mundo. The Lone Ranger is up against a new kind of villain.

The Tarantulas have called a secret council to ensure they can bring down the Lone Ranger. This gang of outlaws is responding to a note from the unknown boss of the Tarantulas and they have Jane Billings fooled into believing they intend to save the Lone Ranger.

The Lone Ranger and Tonto, with the support of Texas Jack, were out to smash the notorious gang known as the Tarantulas. A gold claim known as the last chance formerly owned by Bart Billings was sabotaged by one of the Tarantulas in order to fool Billings. Texas Jack knows only the Lone Ranger can use this information to capture these crooks.

The Lone Ranger has found a note in a box that was supposed to contain stolen cash. The note is revealing some of the plans that the tarantulas were using to control the region, including the haunting of a house.

A former gang member is in custody and is giving them information on the Tarantulas, the dangerous gang responsible for a number of deaths and illegal activity. Tonto overheard the conversation with the authorities and acts quickly to get the Lone Ranger to a secret location before them.

The Lone Ranger has returned to the cafe in Border city looking into the mysterious deaths tied to the Tarantula gang. Don Ricardo is the next target of the Tarantulas and their plan is to sabotage him during a bull fight. Lolita and the Lone Ranger take action to save Don from this crooked gang.