Minarsih (Fatimah) is rescued from four thugs by the painter Basuki (Basoeki Resobowo). They fall in love and begin planning their life together. However, a rich man interested in taking Minarsih to be his wife sends a gang to kidnap her. Basuki is unable to repel them. The Laughing Mask (Oedjang) comes to the rescue. (Soerabaijasch Handelsblad 1940).
A gang of urban street kids and a club of suburban would-be federal agents, at first rivals, join forces to rescue the father of one of the kids, the inventor of a super-explosive and its remote detonator, from the clutches of a band of foreign subversives call the "Flaming Torch Gang".
In 1830 Pierre Courier, a rich and elderly shipowner, awaits the return of his son Stefano, who has just returned from a long trip to Trinidad in the ship in which he is captain.