Clawful and Trap Jaw have stolen ‘the Horn Of Evil' from Trolla and returned with it to Eternia, so Dree Elle, with her mischievous younger brother Yuckers, heads to Eternia to warn Orko and his friends of the imminent danger. The evil duo intend to use the horn's black magic on Castle Grayskull, but thats just half of the trouble in store, as Yucker's love of practical jokes not only causes irritation for Orko and Dree Elle, but also puts them in great danger...

In the village of Chander, Trap Jaw and Beast Man break into the Shrine of the Gryphon to steal the Gryphon jewel, and place it in the grounds of the Royal Palace. Myth says that 200 years ago, the Gryphon – a giant fire-breathing dragon with a lion's head – entrusted the people of Chander to guard the jewel, and will return to cause destruction if anything happens to it. The evil duo plan for the Gryphon to attack the Royal Palace, but a young paige called Thad, who is upset that no-one ever seems to notice him, discovers the hidden gem. Feeling that it makes him someone important, he refuses to part with it, and soon, the Gryphon is wrecking destruction in search of the missing jewel...

Granamyr summons He-Man to Darksmoke, and He-Man follows his call accompanied by Man-At-Arms, who wishes to thank Granamyr for helping save his life (in "The Dragon's Gift"). Granamyr explains that a young dragon called Torm has fallen in love with a human princess, Lyra, and wants to become human in order to marry her. But Lyra's father, Brindle, will only allow any man to marry her if he passes a series of tests. Only a human can take these tests, and Granamyr wants He-Man to take them on behalf of Torm. He-Man agrees, but as he undertakes the tests he faces danger from an evil sorcerer called Zim, who wants to marry Lyra himself.

While enjoying a lazy break fishing, Adam and Cringer see a young boy about to be eaten by a man-eating plant, and come to the rescue as He-Man and Battle Cat. Afterwards, Adam and Teela recognise the boy as their childhood friend David of Athra – only whereas they've grown, David looks the same as he did then! The Sorceress tells Adam that David's evil uncle, magician Count Marzo, cast a spell to transform him back to a child and wipe his memory. The only hope of restoring David to his proper self is to find the Ring of Remembrance, which is located in the Lake of the Lost. But, while He-Man, Teela and Battle Cat search for it, Count Marzo soon captures David back, and intends to use his magic powers to ensure He-Man and co. can never stop him...

Skeletor devises a cunning scheme to capture Queen Marlena and lead He-Man to his robot bird Screeech, and he sends Whiplash, Merman, Clawful and Kobra Khan to carry it out. Kobra Khan kidnaps Marlena after overpowering the Royal Family with his sleep gas, then he and Merman take her through the Haunted Forest back to Snake Mountain. Whiplash and Clawful, meanwhile, create visible tracks in the ground in the opposite direction. When the Royal Family awake, He-Man, Man-At-Arms and Teela follow Whiplash and Clawful's false trail, which will only lead them to Screech. But Cringer's sense of smell detects that Marlena was taken towards the Haunted Forest, and so he and Orko set out to follow the correct trail. Encountering many dangers along the way, this is Cringer's big chance to prove he's no Fraidy Cat!

After Queen Marlena, using Man-At-Arm's new 'mind projector', relives how she came to crash-land on Eternia years before, Teela tries to use the device to learn who her mother is, but is frustrated when it is unable to display the image. She decides to head to the Crysal Sea, in search of the legendary Oracle, the only thing on Eternia that could possibly tell her of her true parents. But Mer-Man, defeated years before by Man-At-Arms, is looking to get even, and plans to use Teela as a sacrifice to a sea God...

Queen Sybilline, apparently once one of the most evil sorceresses in Eternia, has defected to the side of good. She enlists the help of He-Man and his companions in restoring King Danton of the Isle of Tears to the throne, having helped the evil Gorgon to overthrow him. But will they succeed, when Gorgon has recruited Evil-Lyn as his replacement sorceress?

Baron Grod, an intrepid huntsman who kills animals in order to stuff them, is after the last living unicorn on Eternia. Prince Adam and Teela must set out to save the unicorn and put an end to Grod's doings.

Man-At-Arms' mentor, Rohad, who taught him all his scientific skills, is dying and He-Man must set out to find the only cure, a rare plant. Will he overcome the many obstacles in his way in time to save Rohad?

On the remote island of Selkie, the royal Historian, Hovar, is on a mission to investigate the ancient ruins of the island. However, his task is threatened by the many dangerous wild beasts of the island, and he is running out of ammunition to keep them away. Man-At-Arms has invented a sonic device called the VHO (Variable High-frequency Oscillator) which can emit high pitched sounds that will drive animals away. Adam and Teela set sail to Selkie Island with the VHO- but on the way, their ship is attacked by Merman, who sets the mighty sea demon called the Kraken on them... captures Teela, and steals the VHO! Adam transforms into He-Man, but can he save Teela from Merman's clutches, and recover the VHO and get it to Selkie Island, before Hovar's time runs out?

The Sorceress sends He-Man to the Sands of Time, to investigate the mystery surrounding a pyramid which appeared out of nowhere, then vanished as mysteriously as it appeared. When he reaches the desert, accompanied by Ram Man and Orko, He-Man comes across a villain called Lord Masque, who is causing havoc in the desert whilst intending to uncover the house of his 'mistress'. He-Man consults the Royal Archaeologist, Melaktha, who tells him that there was once a dark fortress in the desert which was home to the evil Goddess Shokoti. Suspecting this is the fortress that Masque intends to uncover, Melaktha and his young assistant Stanlin accompany the heroes to the desert to investigate Masque's scheme further.

Adam, Man-At-Arms and Orko are searching the forest for Salkweed needed for Man-At-Arms' experiments. But a storm strikes and Orko finds himself separated from his friends, and runs into a the clutches of a giant. He faints from shock, but awakens to find the giant has returned him to his friends- and not only that, but the giant has also delivered them a supply of Salkweed! The giant moves on before the heroes can ask him who he is and how he knew what they were looking for- but before long, both Orko and the giant are captured by the owner of a travelling Freak Show, who is making easy money by capturing human and animal oddities and displaying them as freaks. As He-Man sets out to rescue them, the giant begins plotting an escape plan, surprising Orko with his incredible intelligence, and friendliness in spite of his appearance.

Beast Man and Trap Jaw go into business for themselves, having stolen the Amber Crystal of Milaka. They use the Crystal to capture Orko and hold him to ransom, for all the Photanium in Eternia. As He-Man and Man-At-Arms set about looking for a way to rescue Orko without meeting the ransom demand, the imprisoned Orko uses his magic to the effect that Beast Man and Trap Jaw wish they'd never captured him in the first place...

Skeletor and Evil-Lyn send a disguised Kobra Khan to Palace Eternia to disrupt the Eternia Day Celebration. But knowing Orko's magic will see through Khan's disguise, Evil-Lyn uses her magic to erase Orko's entirely. He-Man and Orko set out to recover Orko's missing magic, but the only way they can do it is by finding the Magic Falls- can they reach them in time?

Mekaneck explains that he was given his bionic neck by Man-At-Arms after his neck was badly injured in severe storm winds. In the storm, he lost track of his son, Philip, and pledged his services to King Randor and the Royal guard in the hope of some day finding his son. It is revealed that his son was recovered from the storm winds by the evil Count Marzo, who had held him captive ever since and offers his return in exchange for the throne of Eternia. Buzz-Off appears. Teela tells viewers to be careful when running or climbing, and that it's more important to get somewhere at all than get there fast.

A boy called Tharen is jealous of his girlfriend Careel's admiration for He-Man, so he tricks her into thinking he is He-Man's secret identity in the hope that she'll like him better. Meanwhile, at Eternos jail, a criminal scientist caled Galen Nycroft has managed to teleport to his cell a strange machine to increase his power. The machine transforms him into Modulok, and he escapes from jail and sets out to capture He-Man, in the hope of convincing Skeletor to recruit him. He overhears Tharen telling Careel that he is He-Man, and captures him, thinking he is He-Man's alter ego! Can the real He-Man rescue Tharen... and will his real secret identity be threatened in the process?

An evil king from the Dimension of Evil has kidnapped a good wizard. In order to get his freedom back, his daughter makes a bargain that she will kidnap the Star Child so that the evil king can look upon her. However, she soon finds out that she's bee duped when the evil king breaks his bargain and transports her, the Star Child and the heroes (along with the Star Child's body guard) to his dimension, hoping to force the Star Child to use her powers to open a gate to Eternia for himself and his forces to come through and take over.

Remembering the failure of his last attempt to control The Cosmic Comet, Skeletor decides he can only control the comets if he controls Zagraz, the comet keeper. He sends Two Bad out to capture Zagraz, and with the comet keeper in his clutches, Skeletor sets out using the comets to attack the Royal Palace and Castle Grayskull.

There is a bit party at the palace and everyone is invited, except for Skeletor and co. They go to the forest and capture animals which they let loose at the party so He-Man has to intervene to save the day.

Prince Adam and Melaktha undertake an archaeological expedition of the Temple of the Cats, once occupied by an apparently extinct race of Cat People. They take from the temple an ancient statue, called the Grymalkin. But unknown to them, the Cat People still exist and dwell deep within the temple- and the Grymalkin contains an evil demon imprisoned inside. The Cat People's king sends an agile Catwoman, Kittrina, to recover the statue from the Royal Palace. But at the same time, Skeletor sends his minion Webstor after the statue, and beating Kittrina to it, Webstor takes the statue back to his master, who subsequently frees the demon.....

Prince Adam finds his work as He-Man is tiring him out, and Teela is getting frustrated with Adam's apparent laziness, unaware of the real reason for it. After a heated argument between the two of them, Teela decides to make up for it by making Adam train in a fun way, by following her across an obstacle course with a tracking device. Teela runs way ahead of Adam, but runs headfirst into danger as she slips over the edge of Castle Grayskull's abyss and falls down into its bottomless depths. When they realise the possibly fatal situation Teela is in, Adam (as He-Man), Man-At-Arms and The Sorceress must do their best to rescue her before it's too late.

Man-At-Arms needs a sample of Rainbow Quartz to repair a frequency transmitter. But the only place where they can find Rainbow Quartz is in a cavern in Snake Mountain! Adam and Cringer have no choice but to venture into Skeletor's domain to find the Quartz- and at the same time, Teela and three students she was training, who have taken a dare, also end up in Skeletor's clutches! With all this unwanted company suddenly invading Snake Mountain, ultimate chaos is sure to ensue!

Man-at-Arms stumbles upon a royal trinket that could belong to King Miro, King Randor's long-lost father. With the help of He-Man and Man-at-Arms, Randor journeys to the Swamps of Enchantment in search of his father.

The Royal Family are holding a celebration with the Widgets, celebrating the completion of Man-At-Arms' new machine- the Coridite Reactor, which will generate electricity for all Eternians. Smudge, a Widget who has been given the job of guarding the reactor, becomes addicted to gambling with a showman called Melbrag at the ceremony. Melbrag tricks Smudge into gambling away some Coridite, and he flees with the sample, intending to sell it to Skeletor. When He-Man pursues Melbrag, he only tempts him even further, as Melbrag plans to capture He-Man, and deliver him to Skeletor for an even bigger payment!

When on a skiing holiday in the icy regions of Eternia, the Royal Family are captured by an Ice Lord. Orko scares the Ice Lord by pretending he is He-Man (!), and the Ice Lord explains that Skeletor has kidnapped his daughter and will only release her if the Ice Lord delivers the Royal Family to him. Orko convinces the Ice Lord to free Prince Adam (who he calls his 'assistant'), then Adam becomes He-Man and sets off to Snake Mountain with Orko to rescue the Ice Lord's daughter.