The storyline of the film follows several women who volunteer for the Canteen and who must adhere to strict rules of conduct, the most important of which is that while their job is to provide friendly companionship to and be dance partners for the (often nervous) men who are soon to be sent into combat, no romantic fraternization is allowed. One volunteer who confesses to only becoming involved in the Canteen in order to be discovered by one of the Hollywood stars in attendance, ultimately finds herself falling in love with one of the soldiers.
Paul Hudson, qui mène un groupe de bandits dans le désert contre plusieurs nazis, veut les utiliser comme employés pour son entreprise de chemin de fer.
Dixie Daisy est l’une des vedettes d’un spectacle burlesque dans un théâtre de Broadway transformé en music-hall. Lolita, une des actrices de la troupe, est retrouvée assassinée. Dixie est très vite soupçonnée à cause de la rivalité qui régnait entre les deux femmes. Mais d’autres crimes inexpliqués sont bientôt commis et Dixie veut mettre en place un piège pour démasquer l’assassin.
Wealthy businessman Andrew J. "A. J." Mason, Sr. takes his nervous partner, Peyton Potter, to the Club New Yorker for a celebratory evening with his son, Sgt. Andrew J. Mason, Jr., who is about to report for active duty in the Army. A. J. and Andy enjoy the show, which features master of ceremonies Phil Baker and dancer Tony De Marco, while Potter worries about what his wife Blossom would say if she knew he was there. While Potter is trapped into dancing with Brazilian sensation Dorita, Andy becomes intrigued by entertainer Eadie Allen. Phil warns Andy that because Eadie dances at the Broadway Canteen between shows, she will not go out on a date with him, but Andy follows her to the canteen and tells her that his name is Sgt. Pat Casey so that she will not be intimidated by his wealth. Despite her insistence that she cannot date servicemen outside the canteen, Eadie is charmed by Andy and agrees to meet him later when he pursues her to the nightclub. Eadie and Andy spend the evening talking and falling in love, and the next day, Eadie bids him farewell at the train station and promises to write every day. Andy distinguishes himself in battle in the South Pacific, and is granted a furlough after being awarded a medal. A. J. is thrilled and plans to throw a welcome home party for Andy at the Club New Yorker. Phil cannot accommodate his plans, however, as the club is closed for two weeks while the company rehearses a new show. Munificent as always, A. J. invites the performers to rehearse at his and Potter's homes, where they can throw a lavish garden party and war bond rally to welcome Andy. Potter is perturbed about the arrangements when he learns that Blossom knows Phil from her former days as an entertainer, and his chagrin grows when Tony's partner cannot perform and he asks Potter's daughter Vivian to dance with him. Hoping to persuade the stodgy Potter to allow Vivian to perform, Blossom tells him that Phil has threatened to reveal her wild past if Vivian is not in the show. Potter acquiesces, but his problems grow when he is pursued by the romantic-minded Dorita. When not chasing Potter, Dorita learns that Vivian has a boyfriend named Andy, and that he and Eadie's "Casey" are the same man. Complications arise as Dorita tries to keep Vivian and Eadie from discovering Andy's deception. When Andy and the real Pat Casey arrive at the club, however, Eadie learns the truth. Andy proclaims that he wants to marry her and not Vivian, but Eadie insists on breaking off their relationship, as she believes that Vivian really cares for him. During the show, however, Vivian tells Eadie that she is going to Broadway to perform as Tony's permanent partner, and reveals that she and Andy were never truly in love. As the show comes to a close, Eadie and Andy reconcile, and everyone joins in the final song.
Donald rêve qu'il est un citoyen de l'Allemagne nazie, et qu'il travaille dans une usine de munitions à Nutziland, s'épuisant à répondre aux demandes exagérées du Führer. Le dessin animé montre sa journée :
Lily Mars (Judy Garland) is a small-town girl with big-city ambitions. She heads to Broadway hoping for stardom, but after a series of disappointments the best she can manage is an understudy job.
Constance Shaw est une star à Broadway, et Joseph Rivington Reynolds, un de ses admirateurs. Ils se marient après que Constance a rompu avec son fiancé. Connie pense que Joseph possède une mine d'or, mais il travaille en réalité comme valet de chambre dans un hôtel. Lorsque tout le monde apprend ce qu'il est réellement, Joseph est banni du théâtre. Par hasard, il apprend qu'un complot vise à faire exploser une bombe dans un entrepôt de munitions .
Après ses études, Ann Carter part retrouver son frère et s'aperçoit qu'il est maître d'hôtel chez un compositeur de renom. Pour tenter de faire entendre sa voix au maître de céans, elle se fait passer pour la femme de chambre. Mais ses efforts n'aboutissent pas...
The film is essentially a two-part program. The first half consists of a romantic comedy storyline involving an aerialist, played by Gene Kelly, who is drafted into the US Army but really wants to join the air force. During training, he falls in love with Kathryn (played by Kathryn Grayson), the daughter of his commanding officer, who has similarly put her singing career on hold in order to serve by providing entertainment for the troops. Unusually for this type of a film (and for this era of Hollywood), the character Kathryn has only recently met her father for the first time since she was a baby, her parents having divorced. A related subplot has Kathryn conniving to get her parents (played by John Boles and Mary Astor) to reconcile. During the first part of the film, Grayson sings several numbers and Kelly performs one of his most famous routines, dancing with a mop as a partner.