A sci-fi/espionage film in which world powers vie for control of a death ray during World War I as an undercover countess infiltrates enemy ranks to prevent them from getting their hands on the weapon. A sci-fi/espionage film in which world powers vie for control of a death ray during World War I as an undercover countess infiltrates enemy ranks to prevent them from getting their hands on the weapon. A sci-fi/espionage film in which world powers vie for control of a death ray during World War I as an undercover countess infiltrates enemy ranks to prevent them from getting their hands on the weapon. A sci-fi/espionage film in which world powers vie for control of a death ray during World War I as an undercover countess infiltrates enemy ranks to prevent them from getting their hands on the weapon.