Duke confronts Malachi and learns that Malachi is a major conman. Then, Duke does something unexpected. He decides to join Malachi in a gold detector product grift. Malachi guarantees that the detector will sound an alarm when gold is buried underneath it. Of course, it's only an alarm clock inside a box. As sidekick, Duke buys the detector in front of a group of men, then brags about all the gold he found with it. As Malachi gains interest in the product, Duke (hiding) shoots the detector and exposes what's inside. Malachi has to race out of town in his wagon, with Duke jumping in the back, to avoid injury.
Duke convinces Malachi to seek shelter with the wagon train. The families are eager for a preacher and a moving sermon, and Malachi delivers. Then, when the collection plate is passed around, Duke exposes the fraud once more, changing Malachi's life forever.
The Malachi Hobart Story episode is another great piece of Franchot's television work. Fortunately, this episode is easy to find and watch in its entirety! It's available to stream on the Internet Archive if you click here.