The Bumsteads are heading to the mountains for a summer vacation. Departing the train they learn that the gent they had trouble with on the trip, and they seek out another hotel. The one they find is owned by an elderly couple and is on the verge of bankruptcy. The Bumsteads decide to help save the old Mom-and-Pop homestead for Mom and Pop. It doesn't take long for them to begin wondering whether Dagwood is for them or against them.