Flash Gordon Conquers The Universe
It stars Buster Crabbe as Flash Gordon. Buster Crabbe, was a top ranking athlete, who won an Olympic gold medal for swimming in the 1932 games.
In this serial Flash is, yet again, battling his arch-enemy, the evil Ming the Merciless. A deadly plague, known as the 'Purple Death', is sweeping across Earth. It is being spread by Ming's spaceships which are dropping 'Death Dust' out of the skies.
Flash Gordon's mission is to find the planet Mongo and then how the plague is being spread and finally an antidote. Accompanying Flash on his adventures are Dale Arden and Dr. Alexis Zarkov.