S6·E10 Oliver's Double

Confusion takes over Hooterville as a bank robber and his girlfriend hold up in Pixley. The main problem is that the bank robber looks, and sounds exactly like Oliver Wendall Douglas! The first one to get confused is Eb, when he sees what looks like Oliver cheating on Lisa by kissing another girl. The look alike also causes confusions for Mr. Drucker and Mr. Kimbell when he makes a visit to Sam's store. On suspision, Oliver is arrested, while Mr. Drucker and Mr. Kimbell hold up the bank robber and send him to jail. Oliver and the robber are in jail, and the police can't tell who is the real Oliver, but they have Lisa come in to identify the real Mr. Douglas. She picks the robber, but Oliver comes up with an idea to reveal who is the real Oliver, when he has himself, and the robber write down where they believe Lisa has a mole.