Pirates land on the planet to bury their treasure and take Domo captive. / Sarko comes to Amzot to find animals to experiment on and takes Igoo captive.
Sarko the Arkman comes to Quasar to capture specimens and grabs Igoo. The others come running and Sarko gasses Zandor then captures Dorno and Tundro but Gleep escapes to warn the remainder. Tara wakes up Zandor and Zok, Gleep, and Zok head off into space to track down Sarko. Zok frees the captives while Zandor draws Sarko's fire. They beat up Sarko and keep him from dropping Dorno to his death.
The Herculoids investigate a ship dropping large pods on the planet, which then release pod creatures. / Mekkor and his army of robots invade the planet and overpower the Herculoids.
Mekkor and his army of robot invaders lands on Amzot - Mekkor buries himself underground, leaving his antenna above ground to direct his hordes of robot warriors. The robots keep overpowering the Herculoids until Zandor cuts off Mekkor's antenna with his shield - without his control, the robots fall, and break into pieces. Mekkor himself pops back up and Zok blasts him, saving the day.
The Herculoids have to rescue the flying monkey people from Krokar and the Parrot Men. / Sta-Lak wants the riches of Amzot and captures Tara to get his way.
Sta-Lak (then unnamed) flew over Amzot; upon seeing Zandor and Zok, Sta-Lak turned his ship invisible to avoid detection, with the intent of taking Tara prisoner.
Markon and the Mole Men plan an invasion of the surface. / The Herculoids must rescue a Dorgyte from the clutches of a vulture and return him home.
A giant vulture captures a Dorgyte and Dorno spots it and calls the others to rescue it. Zok beats the vulture. They escort the Dorgyte through the Stone Forest to safety, but on their return are ambushed by a spike-shooting caterpillar, an armadillo-like creature, and electricity-shooting beetles. The Herculoids prove triumphant and get back to their own valley.
Zandor and Domo are captured by the Spider Men. / Zandor is captured by the Android People in order for Gorvac to create android duplicates of him.
Zorvak and the Android People have a duplication machine launch an attack on the Herculoids and capture Zandor to make a super-warrior android. Zandor escapes and they defeat the Android People, but the Zandor super-giant android shows up and kicks some butt. The Herculoids distract it long enough for Zandor to destroy the control unit on its chest. It turns agaisnt its creators and they destroy each other.
After their home is destroyed, the Herculoids take on Andropon and his champion, Ogron. / Brotak has the Bubblemen capture Zandor and Tara for experimentation.
The Bubblemen launch an attack in their bubbleships to obtain guiena pigs for their experiments and manage to grab Zandor and Tara. Dorno sneaks into the Bubblemen's underwater city through the whirlpool entrance and he and Gleep free his parents from the leader, Brotac. Zok knocks out some of the pursuing ships, Gloop rescues Zandor and his family when they crash, Igoo and Tundro knock out the remaining ships, and Zok seals the whirlpool entrance once and for all.
Mekkano is freed from prison and seeks revenge against the Herculoids. / A mad scientist captures and shrinks the Herculoids.
Torrak shrinks the Herculoids, pitting them against his army of warrior microorganisms.
Tundro is captured by the Gladiators to participate in their games, leading to a rescue by the others. / Stumbling upon an abandoned city causes the Herculoids to be attacked by stone gargoyles.
The Herculoids come upon the ruins of a lost civilization - Zandor and Zok leave briefly, and Tara is kidnapped by gargoyle statues that come to life. As the remaining Herculoids are attacked, Zandor returns to help them out and then they must battle with an ancient priest who intends to sacrifice Tara to the largest gargoyle, Trax.
Time creatures from the future desire to destroy everything in the past. / The Herculoids have to protect villages from pillaging by Gorton and his Raider Apes.
Gotron and his Raider Apes attack a nearby village, intent on stealing the people's gold. Summoned by the villagers, the Herculoids arrive nd follow the apes into the cave the gold is hidden in. The villains eventually recover their gold, and load it onto their ship. However, the ship is so weighted down with gold that it can barely move. Zandor sends Zok out with one last bag of loot. The dragon drops it right on Gotron's face, and the ship sinks. The chief of the village reveals that the survivors got away and Zandor suspects that Gotron will one day return.
Konar and the Zorbots plan to drain the planet’s atmosphere. / Photon attacks the Herculoids with the Electrode Men.
Volton and his Electrode Men launch an attack on Quasar to vaporize all matter on the planet. Gloop, Zandor, Igoo, and Dorno repel an initial attack and then Volton leads a new attack with more of his forces. He takes Darno and Tara hostage and Zandor leads a night-time attack to free them while Zok breaks a dam and floods Volton's crater-base. Volton flees and the Herculoids prove triumphant for the 33rd time in...oh, about 33 episodes.
Lightning causes giant ant eggs to hatch, releasing the ants to ravage the countryside. / A meteor crashes in the swamp and creates a monster.
When a meteor crashes into the nearby swamp, the radiation creates a ferocious monster that the Herculoids must take on and defeat.
Amak and the Amatons plan to use collars to control the Herculoids. / Queen Skorra plans to exile the Herculoids.
Queen Skorra unleashes a mud/lava creature which they eventually defeat but Skorra plans to force them into exile by sending her drones to capture Gleep, Gloop, Tara, and Dorno. They defend themselves long enough for Zandor and the others to return and drive off the drones. Skorra launches a mega-shield missile and closes the mega-circle to destroy everyone but Tundro creates a smokescreen while the others make a tunnel to escape and then send Skorra running.
Defeating the Laser Lancers only leads to more of them renewing their attack against the Herculoids. / The Herculoids have to protect a refugee princess from the Faceless People who conquered her planet.
The princess Serena of the Sun People arrives on Quasar, being pursued by Darkon of the Faceless People. Darkon wants Serena so he can control her people. The Herculoids successfully drive him off but not before he captures Zara. Zandor agrees to a swap but substitutes a berobed Gleep for Serena and they destroy Darkon's palace from the inside.
Zandor tries to help an alien who crashes on the planet but discovers it’s a Mutoid bent on planetary domination. / Zandor investigates a meteor crash and is taken captive by the Crystalites.
A meteor crash lands on Quasar and transforms into a giant crystaline object. Zandor investigates and is attacked by the Crystalites while Tara and Dorno are captured in crystal cells. Zandor, Gloop, and Gleep steal uniforms and sneak into the fortress and free Dorno and Tara. Gloop and Zok destroy Kryton's ship and he is defeated.
Sta-Lak returns to the planet with a mechanical version of the Herculoids. / The Pirates return for revenge against the Herculoids.
The pirate captain and his crew from ""The Pirates"" returns. Using an image transmitter, the captain immobilizes Zandor and the Herculoids and takes Dorno and Tara prisoner. Zok uses his neutralizing eye beams to free them and then Gloop finds the real Dorno and Tara from the transmitted images and the Herculoids launch a new assault. The captain tries to escape and Gloop blocks his escape missile tube, causing the ship to explode.
Tara is captured by the Reptons and brainwashed into being their queen. / The Herculods have to retrieve an antidote from the Spider Men for the poison infecting Zandor.
While investigating panic among the Monkey People, Zandor confronts a giant spider and is bitten and posioned. Dorno must go the six-legged mustachioed Spider People within the Endless Caves with the Herculoids to get the only known antidote. The Spider People capture Dorno to hold him hostage. The Herculoids eventually stage a rescue, get the antidote, and steal the Spider People's caves to cover their escape.
Amzot is under missile attack by neighboring planet Luvanuum. / Torrak captures Tara as bait for a trap for the Herculoids.
Torak returns and sends out a giant fly to capture Tara. The Herculoids follow and discover that Torak's warrior microorganisms are now larger and more formidable but defeat them anyway.
The Herculoids head to Gravite Island to rescue it from Lotak. / Malak sicks his metal apes on the Sea People.
Malak sends his Metal Apes to attack the Sea People. Dorno is shot off of Zok by one of the creatures. Zandor and the Herculoids destroy the Metal Apes. A damaged Metal Ape returns to Malak's headquarters and is followed by the Herculoids. The Herculoids destroy the remaining Metal Apes and Zok causes a steel beam to fall on Malak and his assistant.
Dorno is feeling depressed when Zandor treats him like a child because of his size and age. Cue an ancient robot monster emerging from an iceblock that is indestructible. Gleep and Dorno sneak into the robot and manage to take control of it and direct it to walk off a cliff, escaping in the nick of time.
A monstrous purple plant sends forth its tentacles to attack, interrupting a game of hide-and-seek. The Herculoids drive off the branches and destroy the core. Dorno doesn't think the meance is over and he and Gleep go looking for another plant, getting into trouble. Dorno leads them to a crater with an energy rock that is mutating the plantlife. Combining their powers they seal the fissure containing the rock, ending the menace once and for all.
tara is kipnapped
An energy creature lands on Quasar via a meteorite. The creatuer can take on the form and properties of any creature it duplicates while imprisoning them in energy coils. It takes on the form of Igoo and proves difficult to defeat. Igoo manages to break free through sheer determination and Zandor defeats the creature by tricking it into taking on the form of a Millennium Plant which will be in suspended animation for the next few centuries.
Dorno and Gleep spot the Snake Riders, who plan an attack from halfway across the planet, across the Boiling Sea. They warn the others and the Herculoids drive them back to their caverns, but Zara gets captured. Zok disguises himself as one of the Riders' giant snakes and Dorno disguises himself as a Snake Rider and they sneak in, free Zara, and seal off the passageway leading back to the Snake Riders' home.
The Buccaneer and his pirates arrive on Quasar searching for a buried treasure. They meet the Herculoids and tell them of their plans, then use their hovercraft to search for the treasure. They begin drilling near a fault line that is close to the Sand People's home. The Buccaneer kidnaps Dorno and then Zandor when he attempts a rescue. Tara and Zok rescue Zandor and Dorno and Zok captures the Buccaneer and his pirates - Zandor commands they leave Quasar never to return.
A friendly dinosaur-like creature, Surla, accidentally eats some radioactive rocks and becomes electrified. Going on a rampage he attacks the Herculoids, taking down Igoo and Tundro with ease. The Herculoids revive and manage to trick him into draining off his energies and reverting to his friendly self.
The descendents/survivors of a highly-developed race that was wiped out on Quasar return to the planet after a 1,000-year mission, and they're not happy to find out their civilization is gone. They attack and capture Dorno, and Gleep and Gloop bring the others. When Zandor confronts them they capture him and put him into a battle with energy whips against their leader. Tara and the Herculoids find proof of how the aliens' civilization was wiped out by trumpeter plants while Zandor plays for time. Tara gets the flower to Zandor which he uses to drive the aliens off.
A Space Trapper comes to the planet to capture animals. He captures Zandor and his family and then uses a mind-control device to take control of Igoo, Tundro, and Zok. Gloop and Gleep free Zandor and the others and Zandor distracts the trapper by giving up on the captives and acting as a guide. Tara tries to free the others by destroying the mind-control device. The trapper gets wise and controls Gloop and Gleep but Zandor destroys the mind control device and drive the Trapper off.
Zandor and the Herculoids are plagued by a strange series of invisible incidents as they are entangled and then they start disappearing. Zandor suspects the Flying People and the king says that his son is behind the incident but doesn't know where the invisibility powers come from. Guest-star Space Ghost arrives to reveal that a Magnetite meteor came out of a black hole: its radiation causes invisibility and the king's son got hold of it. Space Ghost takes the meteor away and Zandor drives off the rebellious son.
Dorn, Gloop, and Gleep are playing and discovered an unearthed metal cylinder which contains an alien big-brained alien. When they release him he reveals himself to be a member of race that ruled Quasar thousands of years ago. The Herculoids seem powerless against his powers of telekinesis. Finally Zandor manages to defeat the alien by grabbing his amulet. When the Mindbender threatens to destroy him, Zandor tossed it back into the cylinder. It's a fake and when the alien is in the cylinder they seal it and put him back into stasis.
