Flash Gordon Conquers the Universe

Flash Gordon Conquers the Universe is a 1940 American twelve chapter blackandwhite science fiction serial film from Universal Pictures, produced by Henry MacRae, directed by Ford Beebe and Ray Taylor, and starring Buster Crabbe, Carol Hughes, Charles B. Middleton, Frank Shannon, and Roland Drew. The serial was written by George H. Plympton, Basil Dickey, and Barry Shipman and was adapted from Alex Raymonds syndicated newspaper comic strip of the same name. It was the last of the three Universal Flash Gordon serials made between 1936 and 1940.

The reedited television version, with the title card reading Flash Gordon Space Soldiers Conquer the Universe, was used for some of the VHS and DVD releases of the serial.A deadly plague is ravaging the Earth, known as the Purple Death because of a purple spot left on victims foreheads. Ming the Merciless is suspected to be behind the plague, and it is discovered that his spaceships have been spreading Death Dust in the Earths atmosphere. ........

Source: Wikipedia