1x12 - Skeletor's Victory

October 4, 1990

Primus has been taken over by the Evil Mutants and the Zeps. As He-Man and Mara have the key to the shield around Primus, Skeletor has captured Master Sebrian, Hydron, and Flipshot and sends B.H., Quakke, and Staghorn to find He-Man. Meanwhile, the Scientists of Primus work to find what makes the Zeps assume their monstrous forms.

1x13 - He-Man in Exile

October 5, 1990

At the advice of Flogg, Quakke puts up bounty posters for He-Man's capture as the Evil Mutants and the Zeps look for him. He-Man frees some prisoners from Slush Head as they join up in his resistance. When Skeletor threatens a village, He-Man offers to surrender if they spare the village.

1x14 - The Seeds of Resistance

October 8, 1990

As the Scientists of Primus work on a way to deactivate the Zeps, Adam and Mara go to where Master Sebrian, Hydron, and Flipshot are being held and free them despite interference by Crita, Slush Head, and the Mutant Troopers. Afterwards, He-Man and Master Sebrian provide a diversion for Skeletor while Mara, Hydron, and Flipshot retake the Starship Eternia.

1x15 - The Battle for Levitan

October 9, 1990

Skeletor threatens to destroy Levitan if He-Man doesn't surrender. He-Man disguises himself as a Mutant Trooper to get close to Levitan while having a plan to retake Levitan and all of Primus with the help of the Galactic Guardians and the resistance. Though Skeletor will destroy Levitan anyway even if He-Man surrenders.

1x16 - Crack in the World

October 17, 1990

Tricking the Scientists of Primus with an award that will be presented at a space station, Skeletor and Flogg use a robot to have them decode the formula for Energon. This substance is used to melt and destroy planets and the award given to them is filled with it. The only thing that can destroy Energon is a power that is as evil as Energon.

1x17 - Escape from Gaolotia

The Evil Mutants have taken over the prison ship Gaolotia. When Caz and Drissi take an Astrosub and get baited to Gaolotia, Skeletor contacts He-Man telling him to come rescue them at Gaolotia. The Sorceress of Castle Grayskull contacts He-Man stating that Skeletor is having Gaolotia placed in the path of the comet Xenon.

1x18 - He-Man Mutant

September 17, 1990

After the Galactic Guardians capture Quakke and B.H., the Scientists of Primus create a machine called the Mutator that can turn any human into a mutant. When it is tested on He-Man so that he can spy on Skeletor, it changes more than his appearance as destroys the Mutator and rescues Quake and B.H. Not realizing that the mutant is a transformed He-Man, Skeletor names him Cruncher and takes him in storming the Inner Council's chambers.

1x19 - Juggernaut

September 18, 1990

A spaceship carrying a little girl arrives on Primus. He-Man and the Galactic Guardians are unaware that the little girl is actually a dangerous cyborg used by Skeletor in his plot to bring down the shield surrounding Primus.

1x20 - Fading Star

The Galactic Guardians investigate a destroyed ship orbiting Primus and find a Hibernation Capsule containing Dukan who is one of the greatest heroes in Primus' past. Skeletor challenges Dukan to a duel in an abandoned city on Denebria. Suspecting trouble, He-Man, Hydron, and Flipshot secretly follow Dukan.

1x21 - Skeletor's Revenge

October 1, 1990

The Scientists of Primus create a Super Computer that would link all machines on Primus and the planetary shield. An exiled computer hacker named Mikros collaborates with Skeletor to place a computer virus called the Argazoid into the Super Computer. To combat the Argazoid, the Scientists of Primus use a shrink ray to shrink He-Man, Artilla, Gepple, and Alcon into the computer in order to keep Argazoid from reaching the Vasionic Resonator so that the Evil Mutants can invade.

1x22 - The Mind Lens

Skeletor uses the Mind Lens to influence the human will. After causing damage on Primus, Skeletor wants to use the Mind Lens on He-Man.

1x23 - Adam's Adventure

Skeletor uses a brainwave detector to help him find He-Man. When Skeletor abducts a spaceship, He-Man is nowhere to be found.

1x24 - Collision Course

Skeletor steals the plans for a gravity generator and builds one of his own. He plans to use it to push Primus out of its orbit where its temperature change threatens all life on Primus.

1x25 - Planet of Junk

Using an image projector found on an asteroid, Skeletor disguises himself and the Evil Mutants as Professor Galactica's Interstellar Circus. They use this cover to kidnap the Scientists of Primus in order to have them work on the weapons found on the asteroid.

1x26 - Sanctuary

September 20, 1990

The Galactic Guardians destroy Flogg's new giant laser canon, but it's wreck emits a green gas that threatens the shield around the planet Primus. Skeletor soon produces more of the gas to weaken Primus and even He-Man's sword is affected.

1x27 - Council of Clones

Skeletor and Flogg have Primus' planetary shield bombed with everything they got. He places a special super-computer on a shuttle pod which He-Man obtains as the Scientists of Primus discover that it can produce clones. When the Scientists of Primus use it to clone the Inner Council members so that they can rest, Skeletor activates the super-computer where the clones work to disable the planetary shield.

1x28 - Cold Freeze

Primus' sun withdraws out of regeneration behind a shell. This causes an ice age to break out as He-Man works to preserve all life on Primus.

1x29 - He-Caz

September 20, 1990

After Caz injures his leg pretending to be a Galactic Guardian, the Scientists of Primus give him a high-tech Medi-Suit powered by energy crystals that can help him move around until his leg is fully healed. This Medi-Suit gives Caz some abilities. Knowing that the Scientis of Primus put too many energy crystals in it, Master Sebrian advises He-Man to stop Caz before he gets hurt. Unfortunately Skeletor lures Caz to a trap on the planet Dectis causing He-Man, Sagitar, and Tuskador to go rescue him.

1x30 - Slaves to the Machine

He-Man and Skeletor arrive on the planet Machina where its inhabitants are controlled by machines. While He-Man joins a resistance and fights for the independence of Machina's inhabitants, Skeletor has other plans.

1x31 - The Galactic Guardians

September 27, 1990

Following a recent fight, the Galactic Guardians reminisce about past battles. In a flashback, it is shown that a transporter ship carrying poison gas was blown off course as Hydron and Flipshot train the Galactic Guardians' new recruits Artilla, Spinwit, Tuskador, and the previously-unknown Sagitar. Skeletor plans to destroy the ship with the Galactic Guardians still on board.

1x32 - The Siege of Serus

An asteroid gets passed Primus' planetary shield. As the lasers from the Starship Eternia doesn't phase it, He-Man heads out to intercept it and deflects it into the sea. Master Sebrian discovers that the asteroid is causing trouble for the underwater city of Serus where Hydron is from. Learning form Hydron's sister Aquata about Serus' flooding, the Galactic Guardians work to seal the crack. Soon, they must deal with the living asteroid Keto who plans to drain Primus of its energy.

1x33 - The Children's Planet

The Scientists of Primus inform Master Sebrian that a deadly gas called the Black Omega has the power to destroy Primus' planetary shield and is located on Omega 4, a frozen planet at the edge of the Tri-Solar Galaxy. Master Sebrian agrees with the Scientists' suggestions to have He-Man destroy the planet with the Black Omega. When He-Man, Spinwit, and Tuskador on Omega 4, he discovers that there are some inhabitants on Omega 4 enslaved by the Mutant Maxus and his two-headed servant named Zark who were exiled there by Skeletor. Maxus and Zark are using the slaves to harvest the Black Omega in order to get on Skeletor's good side.

1x34 - Zone of Darkness

September 21, 1990

Master Sebrian and Mara crash land in a remote area of Denebria. When He-Man arrives on Denebria to save them, he encounters some friendly Mutants who claim that they were once humans.

1x35 - Once Upon a Time

He-Man is homesick for Eternia as the Sorceress of Castle Grayskull to send Teela to visit him. Meanwhile, Skeletor obtains a volume of a spellbook called the Encyclopedia of Evil and plans to obtain the entire collection with the help of Flogg, B.H., and Quakke while also taking Grot as a hostage.

1x36 - A Plague on Primus

Skeletor gets his hands on some anxiety gas which causes any males exposed to it to become trembling cowards and has an opposite on females. Now it is up to the females to defend Primus from the Evil Mutants.

1x37 - The Test of Time

September 24, 1990

The city of Levitan is in need of more berillium to run its generators. Master Sebrian's old friend Treybius travels to Primus to deliver the berillium where his ship the Star Trader is intercepted by the Evil Mutants. After being rescued by the Galactic Guardians, Treybius accompanies He-Man, Master Sebrian, and the Galactic Guardians to Denebria to reclaim the Star Trader and get the berillium before Levitan crashes to the ground.

1x38 - Four Ways to Sundown

September 25, 1990

The Galactic Guardians and the Evil Mutants remember their recent battle in the Quagmi Swamps. Each side recaps what happened during the battle.

1x39 - The Sheriff of Gorn City

September 26, 1990

In order to bring law and order to Gorn City, Flogg takes Skeletor's suggestion to appoint Flipshot as its new sheriff so that Skeletor can spring a trap for He-Man. Flipshot and Spinwit gain the support of Gorn City's mayor Seeka who has no vendetta against Primus. As Skeletor and the ex-mayor Korac orchestrate events to lure Tyroc and the Ugly Bunch to face He-Man by allowing Byloc to be captured, He-Man gains the assistance of Meliac to help defeat them.

1x40 - The New Wizard in Town

A large meeting of magic users is occurring on Primus. The Opague magician Ramlin is in attendance as he has a plan to steal everyone's magic.

1x41 - The Nemesis Within

During an event on Primus where different inventions are being shown off, Skeletor has Grr steal a cloning device. When He-Man works to reclaim the device, the Evil Mutants obtain his DNA sample which Skeletor uses to create a clone he calls "He-Slave" which he plans to use to defeat He-Man.

1x42 - He-Fan

He-Man gets a big fan in the form of an old lady named Melindra. When the Galactic Guardians go on a mission, they are unaware that Melindra has stowed away on the Starship Eternia.

1x43 - The Dream Zone

Skeletor uses an invention to get into the Dream Zone. When he attacks the internal device that maintains the concentrated subconscious that helps to protect Primus, He-Man must enter the Dream Zone to confront Skeletor.

1x44 - Brain Drain

Skeletor uses an intelligence amplifier given to him by Korac to enhance the intelligence of the Evil Mutants. Even when they succeed in overcoming He-Man, the Evil Mutants start being intellectually superior to Skeletor.

1x45 - You're in the Army Now

Adam is on trial for running away during an attack by the Evil Mutants and a supposed act of treachery when he was secretly transforming into He-Man with Werban prosecuting him. Despite Master Sebrian attempting to speak on Adam's behalf, Adam is found guilty by Werban and is to be shipped off to the Prison Moon for the next 18 Telks. Meanwhile, Skeletor and Flogg enlist their inside person to plant a disruption bomb at the Titus Observatory to serve as a diversion for the Evil Mutants' next attack.

1x46 - No Easy Way

While on a reconnaissance mission to Primus' moon, He-Man and the Scientists of Primus discover a plant species that is harmful to the Mutants of Denebria. He-Man harvests the plants and brings them to Primus in hopes that it can keep away the Evil Mutants.

1x47 - The Guns of Nordor

September 27, 1990

Flogg has obtained some new laser cannons with their range being a threat to Primus. Now He-Man and the Galactic Guardians must infiltrate Nordor and destroy the cannons before it can be used on Primus.

1x48 - The Bride of Slushhead

September 28, 1990

A bug on the Starship Eternia causes it to land on Denebria. Sagitar rescues a Mutant named Felca who is the future bride of Slush Head. Discovering that Sagitar rescued Felca, Slush Head agrees to help the Galactic Guardians get a new part for the Starship Eternia. Flogg finds out that Slush Head invited the Galactic Guardians to his wedding as Skeletor sees this as an opportunity to get rid of them once and for all.

1x49 - Dreadator

An unbeatable gladiator champion named Dreadator is persuaded by Skeletor to fight He-Man. To prove that he is the best warrior in the universe, Dreadtor challenges He-Man to a duel.

1x50 - Mutiny on the Mothership

October 1, 1990

The Mutant Mothership is caught in a space storm. Displeased with Flogg's decisions, Staghorn persuades B.H. and Quakke into starting a mutiny.

1x51 - Rock to the Future

Slush Head and Staghorn discover a 1980s rock star on a desolate planet. When they take the rock star to Denebria to meet their fellow Mutants, Skeletor plans to use the rock star in his plot to destroy He-Man.

1x52 - The Running of the Herd

After helping to accompany Hydron, Flipshot and Gepple to study the solar flares, He-Man learns that Sagitar's strange behavior comes from the Running of the Herd vision as He-Man allows the group to head to Equinos to celebrate the Horse Lords' heritage or else perish. Flogg plans to be present at the Running of the Herd with Skeletor, Slush Head, Staghorn, and the Mutant Troopers as a way to target Sagitar while threatening the planet's destruction to General Nekor.

1x53 - Balance of Power

He-Man, Hydron, Flipshot, Sagitar, and Mara head to the planet Nekron to negotiate peace between the Mytes led by President Pell and the Gleanons led by General Nifel. They come to the aid of the Mytes when Crita collaborates with General Nifel in capturing President Pell in order to access the Transium Mines and obtain enough to make weapons for the Evil Mutants.

1x54 - The Tornadoes of Zil

Mara contacts Master Sebrian to inform him of a radio signal from the planet Zil that has been uninhabitable due to the storms there. He-Man and Spinwit head to Zil where they meet their inhabitants who would like Spinwit to save them due to the crystals for their Tornado Machines are almost out of power. Meanwhile, Skeletor takes B.H. and Quakke with him to attack Zil.

1x55 - The Taking of Levitan

President Pell sends his ambassador Bimo to Primus to showcase his robot Kog. Upon being contacted by General Nifel and Crita, Skeletor and Flogg plan to reprogram Kog to destroy Levitan where they have the Gleanons' programmer Private Dobson do the job. Upon Bimo and Kog's arrival, Optikk activates Kog to attack as he, Staghorn, Hoove, Slush Head, B.H., and Quakke begin their attack on Levitan.

1x56 - Save Our City

The Mytes and the Gleanons are still at each other. General Nifel and Crita have a plan to subjugate the Mytes. Now He-Man and Mara must help the Mytes and thwart the Gleanons' plot.

1x57 - The Power of the Good and the Way of the Magic

September 19, 1990

To cut off the supplies to Primus, Skeletor and Flogg hatch a plan to conquer the planets in the Tri-Solar Galaxy. The planet Danzig is their first stop as He-Man, Flipshot, and Ambassador Bimo come to Danzig's defense.

1x58 - Queen's Gambit

Skeletor causes a meteor to head to Primus while Crita starts a large offensive against the Mytes. With He-Man busy dealing with the meteor, Mara is on her own defending the Mytes from Crita and General Nifel.

1x59 - There's Gems in Them Hills

Skeletor and Korac free some mercenaries and promises them a reward if they terrorize Primus. When He-Man tries to infiltrate them and gets caught, Ambassador Bimo becomes his unlikely rescuer.

1x60 - The Call to the Games

The Galactic Guardians and the Evil Mutants get involved with a battle between two gigantic stars. When the battle is finished, both parties must fight each other.

1x61 - The Blacksmith of Crelus

He-Man and the Galactic Guardians head to the planet Crelus to find the blacksmith Yolt to make weapons for the upcoming Games. Though Skeletor and Flogg have a plan to make Crelus make weapons for them and fool him into thinking that the Galactic Guardians are the bad guys.

1x63 - The Games

The Galactic Guardians and the Evil Mutants compete against each other in the Games. While the Evil Mutants win the first round thanks to some trickery, the Galactic Guardians work to turn the tide against them.

1x64 - Flogg's Revenge

He-Man and the Galactic Guardians celebrate their victory in the Games. After failing to blow up the Great Hall with a stolen astrosub that has a Transium Ore, Skeletor and Flogg take hostages with the condition of their release is that He-Man must face Skeletor in the Arena.

1x65 - The Final Invasion

In light of the Galactic Guardians' latest victory, Flogg leads the Evil Mutants and the entire Denebrian forces in their final battle against Primus.