Flash Gordon Conquers the Universe - Chapter Three - "Walking Bombs"

When a ravaging plague strikes the Earth, it threatens no less than global extinction. This alien disease, called the "Purple Death" by Earth's scientists, is believed to be the evil spawn of Ming, the Emperor of Planet Mongo, and the most merciless interplanetary villain that ever struck fear into the heart of man. The world's only hope seems to rest with Flash Gordon, the planet-hopping hero, who blasts off in his rocket ship to search and destroy the source of the death dust rays.
The team traces the bombs’ signal to Ming’s rebuilt Power Room. Flash and Captain Roka lead a stealth assault, disabling the control device, but General Lupi sacrifices himself to detonate a rogue bomb away from the group. With Ming’s scheme thwarted, Flash vows to pursue him to his final stronghold, determined to end his reign and save both planets...