Marine, James Murfin, is unaware of Icelandic customs. When he flirts with Katina her Icelandic family take his actions as a proposal of marriage to Katina. Desperately wanting out, James gets his buddy to help him. Good Luck!

When womanizer Corp. James Murfin lands with the other U.S. Marines at Reykjavik, Iceland, he immediately starts chasing the local girls, including naïve, pretty Katina Jonsdottir. Katina, who is bored by her persistent beau, Sverdrup Svensson, tries to get rid of him by telling him that two years earlier, she let a man kiss her at a sports carnival in Switzerland. When Sverdrup sees Katina dancing with James at the popular Hotel Jorg later that evening, he assumes that James is the man Katina kissed. Katina is completely taken in by James's smooth talking, and when she returns home that evening, she allows her father, younger sister Helga, grandmother and aunt Sophie to believe that she and James are engaged. The family has been pressing Katina to marry Sverdrup, for Helga is engaged to Valtyr Olafson, whose wealthy father insists on adhering to an old tradition that the elder sister must marry first. Desperately needing the Olafson money to resuscitate their failing restaurant, the family wants to get Katina's marriage out of the way. Sverdrup glumly agrees to step aside so that Katina can marry James, who plays along with the charade when he meets her family. James's pal and fellow Marine, Slip Riggs, is angered by James's disregard of the seriousness of the situation and the potential consequences, and urges him to tell Katina the truth. Two weeks pass as James romances Katina, until finally he tries to tell her the truth at a Red Cross benefit carnival. Katina, by now believing that James really intends to marry her, does not understand, and so Slip arranges for her to meet Adele Wynn, a beautiful singer whom James jilted in America a few years previously. Adele is performing at the Hotel Jorg, and after meeting her, Katina becomes disillusioned about James and tries to tell her family that the wedding is off. James follows her home and attempts to apologize, saying that his flirtatious nature will never let him settle down. Determined now to win James, Katina registers for a marriage license, causing James to volunteer for special detail to escape her. When the family discovers that he is gone, they insist that she marry Sverdrup so that Helga can marry Valtyr. Katina claims that she and James were married by a Marine chaplain just before he left, and so Helga and Valtyr's marriage takes place two weeks later. On the day of the ceremony, James returns and is furious to discover the new lie that Katina has told. Slip learns that after the wedding, the family plans to serenade Katina and James on their way to their own bridal chamber, and informs James. The serenading begins, and a smug James accompanies the increasingly nervous Katina. Katina tries to escape James's kisses when they are left alone, and it is not until Slip arrives with Herr Tegner, the minister, that she realizes that James does indeed want to marry her. The couple are wed, and soon after, Katina stages a skating show to entertain the Marines.