John Kent (Randolph Scott), a former star football player at Harvard, goes to Paris with his friend Huck Haines (Fred Astaire) and the latter's dance band, the Wabash Indianians. Alexander Voyda (Luis Alberni) has booked the band, but refuses to let them play when he finds the musicians are not the Indians he expected, but merely from Indiana (Huck Haines and his Indianians Band). 　　John turns to the only person he knows in Paris for help, his Aunt Minnie (Helen Westley), who owns the fashionable "Roberta" gown shop. While there, he meets her chief assistant (and secretly the head designer), Stephanie (Irene Dunne). John is quickly smitten with her. 　　Meanwhile, Huck unexpectedly stumbles upon someone he knows very well. "Countess Scharwenka", a temperamental customer at Roberta's, turns out to be his hometown sweetheart Lizzie Gatz (Ginger Rogers). She gets Huck's band an engagement at the nightclub where she is a featured entertainer. 　　Two things trouble John. One is Ladislaw (Victor Varconi), the handsome Russian deposed prince and doorman who seems too interested in Stephanie. The other is the memory of Sophie (Claire Dodd), the snobbish, conceited girlfriend he left behind after a quarrel over his lack of sophistication and polish. 　　When Aunt Minnie dies unexpectedly without leaving a will, John inherits the shop. Knowing nothing about women's fashion and that his aunt intended for Stephanie to inherit the business, he persuades Stephanie to remain as his partner. Correspondents flock to hear what a football player has to say about feminine fashions. Huck gives the answers, making a lot of weird statements about the innovations John is planning to introduce. 　　Sophie arrives in Paris, attracted by John's good fortune. She enters the shop, looking for a dress, but is dissatisfied with everything Stephanie shows her. Huck persuades her to choose a gown that John had ordered discarded as too vulgar. When John sees her in it, they quarrel for the final time. 　　John reproaches Stephanie for selling Sophie the gown. Terribly hurt, Stephanie quits the shop. With Roberta's putting on a fashion show in a week, Huck takes over the design work, with predictably bad results. When Stephanie sees his awful creations, she is persuaded to return to save Roberta's reputation. 　　The show is a triumph, helped by the entertaining of Huck, Countess Scharwenka, and the band. (A pre-stardom Lucille Ball, with platinum blond hair, appears uncredited in her first RKO film[4] as a model wearing an elaborate feather cape, after the vocal by Dunne, in the fashion show.[5]) The closing sensation is a gown modeled by Stephanie herself. At the show, John overhears that she and Ladislaw are leaving Paris and mistakenly assumes that they have married. Later, he congratulates her for becoming a princess. When she informs him that Ladislaw is merely her cousin and that the title has been hers since birth, the lovers are reunited. Huck and Lizzie, who decide to get married, do a final tap dance sequel.

年迈的史蒂芬·贾德受雇佣于一家银行把金矿运过一个危险的边界。他雇佣了一位老搭档吉尔·沃斯特姆和他的孩子来帮助他。尽管如此，史蒂芬并不知道有没有他的帮助，吉尔和赫克都准备偷金矿，在路途中，一位年轻漂亮的小姐先后试图摆脱她的爸爸，未婚夫和他那些危险的兄弟们的束缚…

While surveying a telegraph line in 1861, Western Union engineer Edward Creighton (Dean Jagger) is severely injured in an accident. He is discovered by Vance Shaw (Randolph Scott), an outlaw on the run from a posse. Forced to travel on foot after his horse was hurt, Shaw at first considers stealing Creighton's horse, but changes his mind and takes the man with him, saving his life. 　　Sometime later, following his recovery, Creighton returns to Omaha, Nebraska and plans the construction of a telegraph line from Omaha to Salt Lake City, Utah. Facing considerable opposition to the line from Confederate soldiers, Indians, and outlaws, Creighton elicits the help of his sister Sue (Virginia Gilmore), foreman Pat Grogan (Minor Watson), and assistant Homer Kettle (Chill Wills). 　　Looking to put his outlaw past behind him, Shaw arrives at Creighton's Western Union office looking for honest work and is hired as a scout by Grogan who is unaware of his past. Creighton recognizes him among the men and allows him to stay despite his suspicions. Creighton also hires tenderfoot Richard Blake (Robert Young), a Harvard-educated engineer as a favor to Blake's father. Shaw and Blake are both attracted to Sue and vie for her attention, but their romantic rivalry is cut short when construction of the telegraph line starts on July 4, 1861. 　　After work commences on the line, one of the men is killed apparently by a mysterious band of cattle-rustling Indians. Unconvinced that Indians are to blame, Shaw rides out to investigate and follows the rustlers' trail to the camp of Jack Slade, a former friend and cohort, whose gang committed the killing disguised as Indians—the gang Shaw left following his last bank robbery. Slade reveals that they are working for the Confederacy to disrupt Western Union because they believe the telegraph service will help the Union. Shaw rides away and returns to the line. Not wanting to turn in his former friends, Shaw tells Creighton that a large band of Dakota Indians stole the cattle, and recommends that they simply replace the herd and not risk a fight with the Indians. 　　Sometime later, a confrontation takes place between men working on the forward line and a band of drunken Indians. When one of the Indians tries to steal some equipment, a nervous Blake shoots him, ignoring Shaw's order to remain calm. After word arrives that the main camp is under attack by other Indians, the Western Union men rush back to help with the defense. At the main camp, Slade's men, who are again disguised as Indians, steal the Western Union horses. The company discover the ruse when one of the wounded Indians turns out to be a white man. Forced to buy back their stolen horses from Slade, Creighton becomes suspicious of Shaw's involvement, especially when he admits to knowing the gang. 　　Soon the U.S. Army arrives and announces the Indians have now refused to allow the telegraph lines to go through their territory in response to Blake's shooting of the drunken Indian. Creighton, Shaw, and Blake ride out to convince Chief Spotted Horse to allow them to build the line through Indian territory, even though the man Blake wounded was Spotted Horse's son. Creighton is finally able to persuade the Indians to allow them passage, and work continues until the company approaches Salt Lake City. 　　Sometime later, Shaw receives word that Jack Slade wants to meet with him. On the way to see Slade, Shaw is captured and bound by Slade's men. Slade says his group is going to burn down the Western Union camp and they don't want Shaw to interfere. After Slade and his men ride off, Shaw escapes from his ropes but arrives back too late to prevent the fire. He helps rescue some of the Western Union men from the flames and burns his hands in the process. 　　After the fire, Creighton confronts Shaw for an explanation, but Shaw does not reveal what he knows and is fired by Creighton. As Shaw leaves the camp, he tells Blake that Slade is actually Shaw's brother and that he, Shaw, will find Slade's gang and stop them from interfering with the telegraph project. Shaw rides off and finds Slade and his men in a nearby town. At the barber shop, Shaw confronts his brother, whose gun is concealed under the barber's sheet. Slade shoots Shaw through the sheet. Shaw fights back in spite of his wound, killing some of the gang members, and then dies. Blake arrives and continues the fight with Slade who dies from his wounds. Soon after, the Western Union line is completed and the workers celebrate. When Sue laments the absence of Shaw, Creighton tells her that Shaw can hear them.