When HMS Scotia pays a visit to the French Riviera, the officers throw a lavish party to celebrate the engagement of Captain Robert Randall to Jill Eaton, a charming American girl; among the guests are Mary Carlton, Jill's American friend, and Antoinette, a vivacious redhead. However, when the last shore-boat is deemed unseaworthy, the girls are obliged to spend the night on ship. A series of hilarious complications ensue, as the officers attempt to keep the girls away from the beady eyes of Admiral Hewitt – who chooses this very night to board the Scotia.
Julie, an American on vacation in Mexico, spots a giant, one-eyed amoeba rising from the ocean, but when she tries to tell the authorities, no one believes her. She finally teams up with a marine biologist in an attempt to destroy it.
Prince Ali wants the Golden Idol of Watusi and hires a ruthless hunter to get it for him. Bomba has the idol and, with the help of Commissioner Barnes, Eli, and a beautiful archeologist, he foils Ali's plans.
Marshovia, a small European kingdom, is on the brink of bankruptcy but the country may be saved if the wealthy American Crystal Radek, widow of a Marshovian, can be convinced to part with her money and marry the king's nephew count Danilo. Arriving to Marshovia on a visit, Crystal Radek change places with her secretary Kitty. Following them to Paris, Danilo has a hard time wooing the widow after meeting an attractive young woman at a nightclub, the same Crystal Radek who presents herself as Fifi the chorus girl. Plot by Mattias Thuresson.
Rod Cameron stars as frontier scout Tim Clay, assigned to guide a wagon train through Indian territory. Clay knows that he's in for a lot of trouble because of the treaty-violating activities of white criminals Pickett and Keane. Fortunately for the hero, Pickett and Keane double-cross each other somewhere along the line, weakening their ability to foment an all-out Indian attack.
The Winfield family moves into a new house in a small town in Indiana. Tomboy Marjorie Winfield begins a romance with William Sherman who lives across the street. Marjorie has to learn how to dance and act like a proper young lady. Unfortunately William Sherman has unconventional ideas for the time. His ideas include not believing in marriage or money, which causes friction with Marjorie's father, who is the local bank vice president