Rouletabille interrupts his vacation in Hungary to fight a gang of air pirates with his boss Sainclair and the daughter of Budapest's chief of Police.
as Joseph Rouletabille
as Sainclair
as Sonia
as Amie de Rosy
as George K. George
as Rosy Bathory
as Hubner (as Duroy)
as Commissaire Moreau (uncredited)
as Bathory (uncredited)
