Dagwood brings home a pedigreed Great Dane which an important company client wants and which Blondie enters in the big dog show.

Blondie finds a valuable watch that has been hidden by hubby Dagwood. She assumes that it's a surprise wedding gift, but the truth is that Dagwood has been guarding the watch on behalf of a client who bought the gift for his own wife, which soon leads to trouble with his boss, a loan shark, and crooked building contractors.

Dagwood enters the Army Reserve and Blondie visits only to discover that he has caused all sorts of problems which lead to numerous conflicts.

While watching from her train window, Nikki Collins witnesses a murder in a nearby building. When she alerts the police, they think she has read one too many mystery novels. She then enlists a popular mystery writer to help her solve the crime on her own, but her sleuthing attracts the attentions of suitors and killers.

Construction workers in World War II in the Pacific are needed to build military sites, but the work is dangerous and they doubt the ability of the Navy to protect them. After a series of attacks by the Japanese, something new is tried, Construction Battalions (CBs=Seabees). The new CBs have to both build and be ready to fight.

Football player John Kent tags along as Huck Haines and the Wabash Indianians travel to an engagement in Paris, only to lose it immediately. John and company visit his aunt, owner of a posh fashion house run by her assistant, Stephanie. There they meet the singer Scharwenka (alias Huck's old friend Lizzie), who gets the band a job. Meanwhile, Madame Roberta passes away and leaves the business to John and he goes into partnership with Stephanie.

A Swedish princess boards an ocean liner in Europe en route to an acting career in America and finds herself getting inconveniently attached to a bandleader returning home. To complicate matters, a blackmailer on board apparently knows she is not who she claims to be - and he has his sights set on other passengers with secrets of their own. In the meantime an escaped killer has stowed away under someone else's identity, and is killing again to cover his tracks; five international police detectives on board are heading the investigation to find him. When evidence points to the princess and bandleader, they must find the killer themselves - before he finds them.

When the Lemon Drop Kid accidentally cheats gangster Moose Moran out of his track winnings, the Kid promises to repay Moose the money by Christmas. Creating a fake charity for "Apple Annie" Nellie Thursday, the Kid tricks his gang into donning Santa suits and "collecting dough for old dolls" like Nellie who have nowhere to live.

Kris Kringle, seemingly the embodiment of Santa Claus, is asked to portray the jolly old fellow at Macy's following his performance in the Thanksgiving Day parade. His portrayal is so complete that many begin to question if he truly is Santa Claus, while others question his sanity.

Nick Cherney, in prison for embezzling from Torno Freight Co., sees a chance to get back at Johnny Torno through his young priest brother Jess. He pays fellow prisoner Rocky, who gets out a week before Nick, to murder Jess... who, dying, tells revenge-minded Johnny that he'd written a clue "in the Bible." Frustrated, Johnny obsessively searches for the missing Gideon Bible from Jess's hotel room.