Joe finds a strange golden idol hidden in his room, but when he accidentally breaks it, inside is a strange piece of broken stone that he stashes in his pocket. Later that day at the Bridgeport Fair Joe gets lucky, but he also draws the attention of the Tall Man. Meanwhile, Frank discovers some information about an old mining expedition that ended in tragedy and the boys start to wonder what their Mom was investigating.

Joe and Frank decode a message that leads them to try and make a drop at the warehouse, despite the fact the message was intercepted by Police Chief Ezra Collig. The drop goes awry, but later when the boys return looking for more clues, they find a piece of fabric that the person fleeing the warehouse left behind. When the Tall Man escapes from the hospital, the boys reveal their entire investigation to their friends and get their help to lure the Tall Man to Chet's farm.