The Lone Ranger (1949)

S3E18 The Empty Strongbox

The Lone Ranger and Tonto encounter a botched stagecoach robbery, where they find the driver gravely injured. With his last breath, the driver reveals the identity of the culprits. Just as the Lone Ranger is about to take action, a sheriff arrives on the scene and mistakenly believes that the Lone Ranger himself is the one behind the theft.