When a deadly Nitron ray strikes Earth, Flash Gordon and his friends travel to Mars to battle Ming the Merciless and his new ally Queen Azura.

Directed by: Ford Beebe & Robert F. Hill
Written by: Wyndham Gittens & Norman S. Hall & Herbert Dalmas & Ray Trampe
Runtime: 229 minutes
Tagline: 15 Sensational Sense-Staggering Episodes!
Cast:
Buster Crabbe Buster Crabbe
Flash Gordon 
Jean Rogers Jean Rogers
Dale Arden 
Frank Shannon Frank Shannon
Dr. Zarkov 
Charles Middleton Charles Middleton
Emperor Ming 
Beatrice Roberts Beatrice Roberts
Queen Azura 
Donald Kerr Donald Kerr
Happy Hapgood