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Wally (Tony Dow) is among those invited to spend the weekend at the cabin owned by the family of his friend Scott (David Kent). However, Scott has failed to mentioned that there will be no adult chaperones. Upon learning this, Wally decides to come clean and tell his mom and dad (Hugh Beaumont and Barbara Billingsley). However, his parents have already learned the truth -- and they're now convinced that Wally was trying to pull a fast one.