Tyrant Ming the Merciless and his vast army of evil accomplices are working overtime to destroy humanity. Now, four of the greatest comic strip heroes, The Phantom, Flash Gordon, Mandrake and his trusted confidant and bodyguard, Lothar, join forces with their uniquely talented teenage children to challenge Ming and his evil followers in a series of great adventures.
Flash's wife's life force is drained in Ming's evil Inquisitor, but not before her essence is saved for Rick's nearly completed new super computer, Dynak X. In the first real battle with Ming on Earth our heroes are nearly electrocuted in an abandoned penitentiary.
A huge cavern located in a dormant volcano is chosen as the new home for the Defenders of the Earth and their super computer, Dynak X.
Kshin's experiments with Mandrake's forbidden sorcery books produces Shogoth, an evil demon. It takes all the Defenders to defeat this creature. In the end, Kshin learns what it takes to be a Defender of the Earth.
The Phantom's evil older brother joins forces with Ming the Merciless and becomes N'Dama, The Weather Demon.
Ultracomputer Dynak X is invaded by Ming's Electronic Maggot. The miniaturized Defenders must fight her war within!
A famous scientist's experiment backfires when his formula starts turning people into plants.
Ming the Merciless develops a weather control device and plots to freeze the world solid!
Ming discovers a way to awaken a mammoth killer-robot from another galaxy that has been buried under Central City for more than ten million years.
The beautiful space princess Astra plans revenge against Flash Gordon and gives Ming the Merciless her secret formula to create The Clay People, a race of unstoppable slaves.
The awesome intergalactic storehouse of knowledge visits the Galaxy and the Defenders must keep Ming from stealing its deadly weapon!
When a 7-billion-year-old alien warhead crash lands in the South American jungle, the Defenders must retrieve the device and deactivate it. After Ming fails to stop the Defenders from escaping with it, he hacks into their Battle Simulation Room in an attempt to destroy them
Ming uses the Star of Mongo crystal to tap into Kshin's imagination in the Battle Simulation Room to bring to life anti-Defenders who will destroy the real Defenders once and for all.
Mandrake and Lothar join forces with the beautiful Atascadero to find The Lost Jewels of Tibet. They discover, along with Ming, the wrath of a pre-historic dragon.
Ming springs Mandrake's nemesis, an evil ex-Shadow Lord, from prison and orders him to locate the three pieces of the Orb of Konos that will enable Dr. Dark to grant immortality to the Merciless One.
Ming plots to steal the Crown Jewels of England so that he can grow invincible crystal soldiers and conquer the world!
Ming launches a Frost Satellite with the power to blanket the earth with a veneer of frost and enslave all of humanity.