A woman and a man vying for a woman's affection: the usual love trio? Not quite so since the belle in question is Lorraine de Grissac, a very wealthy and alluring society woman, while one of the two rivals is none other than Arsène Lupin, the notorious jewel thief everybody thought dead, now living under the assumed name of René Farrand.
A cocky young Marine who's alienated many of his fellow soldiers with his smart-aleck, wiseguy attitude gets a "wake-up call" when his unit comes under attack by bandits.
Reflecting the filmmaker's passion for automobiles, who in his youth participated in car races, the film portrays the attempt to manufacture a new model in the Ford factory in the city of Porto.
The underage Rosemarie is still too young to run her inherited farm by herself; but she's more than aware that her foster father and the farm's administrator, the farmer Schlieker, is constantly skimming from the farm's finances to line his own pocket.
A western town is being overrun and ruled by a gang of outlaws led by Bart (John Merton). Former Ranger Tim (Tim McCoy) is called out of retirement and assigned to clean up the gang.
After losing a coveted role in an upcoming film to another actress, screen queen Mona Marshall (Lola Lane) protests by refusing to appear at her current movie's premiere.