Dagwood Bumstead (Arthur Lake) quits his job when his long-awaited vacation is postponed. Blondie (Penny Singleton) asks J.C. Dithers (Jonathan Hale) to give Dagwood his job back, and Dithers agrees but on the condition that Blondie take charge of the office while he is in Washington closing a deal. Dagwood, left to tend the house while Blondie goes to work, succumbs to a neighbor's suggestion to go fishing and leaves Baby Dumpling (Larry Simms) in care of Blondie's sister, Dot (Dorothy Moore), in town for a jitterbug contest. While fishing, Dagwood meets two entertainers from the Garden Cafe and when one of them, Francine (Linda Winters), almost overturns the boat, Dagwood grabs to save her, and the "glutch" is photographed. Blondie has the film from Dagwood's camera developed, and Dithers wires her to buy some land owned by the Garden Club proprietor before he learns that it has been approved as the site of the new airport. Enroute, she picks up the developed film. Dagwood has wandered off to play pool, and Dot and her boy friend, Freddie (Joel Dean), take Baby Dumpling with them to the jitterbug contest at the Garden Cafe. Blondie recognizes Francine from the fishing photograph just as Dagwood comes along in pursuit of Baby Dumpling. She smacks him with her purse, then leaves with Baby Dumpling. The cafe owner finds the Dithers telegram realizes the importance of his land. Meanwhile, reeling from the impact of Blondie's blow, wins the jitterbug contest with his wild gyrations.

When Dagwood Bumstead quits his job because his boss, Mr. Dithers cancels his vacation, Blondie decides to meet Dithers and plead for her husband's job. To teach Dagwood a lesson, Dithers offers Blondie the job, which makes Dagwood so angry that he decides to sneak away on a fishing trip with neighbor Marvin Williams. Unknown to Dagwood, Marvin has arranged a rendezvous with singers Betty Lou Wood and Francis Rogers, and when Blondie accidentally sees some photos of her husband with Francis, trouble comes to the Bumstead house. After a series of comic mixups, Dagwood is reinstated in both his boss's and wife's good graces, and normalcy returns to chez Bumstead.