Blondie and Dagwood have been planning their long-awaited vacation to Lake Hokapola with their children, Alexander and Cookie all summer, but thanks to Dagwood's boss, Mr. Radcliffe, responsible for having it postponed three times already, is about to do it to them a fourth time. It's now September and summer nearly over. Radcliffe talks Dagwood into correcting the blueprints for Mr. Whiteside, a prominent client, but how to tell Blondie. With much persuasion, Blondie agrees to put off their vacation for one more day, and no more. The plans are then completed, but after Whiteside examines them, he finds more errors that puts Radcliffe in a tough situation. Would he dare cancel the Bumstead's vacation again?