S5·E29 Ring-a-Ding-Ding

Steve's is returning from a crop dusting convention and Betty Jo is celebrating with a large homecoming party. Everyone notices that Steve is not wearing his wedding ring. A suspicious Betty Jo later learns that Steve took it off to get it engraved, which Betty Jo had been wanting him to do for some time. They make a pact never to remove their wedding rings ever again. But when Betty Jo takes her ring off to show Bobbie Jo her engraving, she accidentally drops it down the kitchen sink drain. Betty Jo doesn't want Steve to find out. Uncle Joe tries to help, but that doesn't go well. Betty Jo then calls plumber Mr. Peck. But when she doesn't have the money to pay, Mr. Peck takes the ring until she can come up with the money. Uncle Joe comes up with a plan to get the ring back.