Gene discovers dynamiting at a safe robbery. His number one clue is the fuse the outlaw used. Gene is confused when the fuse is timed at 4 1/2 minutes to blow open a safe. Pat believes the fuse was that long so the robber would've had time to escape. Gene believes then that the dynamite was a cover up. Gene arrests his suspect, George Evans, who admits to lighting the dynamite, but to cover up the earlier disappearance of the money. Pat uses his new telescope to watch someone's hand at poker, Gene then believes the telescope could be used to find the combination to the safe. Gene sets a trap for the robber who he suspects to be Jim Lear, one of George's co-workers, by replacing the door of the safe and the combination. Gene is surprised to find the real outlaw is the hotel manager, John Turner. He and Jim are taken in.