Petticoat Junction/By the Book
Guest Star: Kenneth Washington (Bill Blake)
Steve is working late into the night to submit a bit for a lucrative government contract. When Uncle Joe finds out about the contract after Steve has submitted his bid, Uncle Joe chastises him for not using Joe's administrative skills in greasing the process to ensure that Steve wins the contract. When Steve continues not to hear if he was awarded the contract, Joe can't help but continue to rub it into Steve that he should have consulted with him first. An angry Steve in turn blows up at Uncle Joe, dissolving the Carson-Elliott Airlines. After Steve hears if he was awarded the contract, one half of the old company is willing to bury the hatchet, but the other half isn't. It isn't until Steve hears from a government official named William R. Blake - an old Air Force nemesis of Steve's, who he refers to mockingly as "By the Book Blake" - that both Steve and Uncle Joe figure that neither knows everything that one needs to know about running the company effectively. Meanwhile, Bobbie Jo tries to get Uncle Joe to start running as a form of exercise.
This episode was intended to be the last show of the series, but CBS brought back the show for a seventh and final season.