After Ming the Merciless releases Death Dust on the people of Earth, Flash Gordon and his friends travel to planet Mongo in an attempt to stop Ming's evil plans.
Having wrecked Ming's laboratory and saving General Lupi, Flash Gordon and his crew escape Ming's palace and head to Frigia in search of Polarite, the antidote to the death dust, with Ming's men in close pursuit.
After an avalanche leaves Flash Gordon and friends stranded and in need of help, Dr. Zarkov and crew attempt to rescue their desperate friends as the cold Frigian climate puts them at risk. Later, Ming orders an army of his "Walking Bombs" to disrupt the efforts of Flash Gordon and his friends.
With Dr. Zarkov and Dale Arden still held prisoner in Ming's Palace, Flash Gordon and his crew devise a plan of escape and receive aid from an unexpected friend.
After being saved by Prince Barin, Flash Gordon and his friends attempt to save Arboria from a wave of fiery projectiles sent from Ming the Merciless in retaliation for Prince Barin's betrayal. Can Flash Gordon save Arboria from burning to the ground?
