He-Man/ThunderCats facts for kids

Quick facts for kids He-Man/ThunderCats
Cover to He-Man/ThunderCats #1 (December 2016). Art by Freddie Williams II.
Publication information
Publisher	DC Comics
Format	Ongoing series
Publication date	October 5, 2016 - March 15, 2017
Number of issues	6
Main character(s)	Masters of the Universe ThunderCats
Creative team
Writer(s)	Lloyd Goldfine Rob David
Artist(s)	Freddie Williams II
Collected editions
He-Man / Thundercats	ISBN 978-1401269159
He-Man / Thundercats	ISBN 140126915X

He-Man/ThunderCats was an awesome comic book series that brought together two legendary teams: He-Man and the Masters of the Universe with the amazing ThunderCats! This epic crossover happened between 2016 and 2017.

The Story Begins

This six-part adventure starts with the evil Mumm-Ra from Third Earth. He's always trying to defeat the ThunderCats, especially their leader, Lion-O. Mumm-Ra wants a super powerful weapon to finally win. He finds out about He-Man's Power Sword!

Mumm-Ra's plan causes a huge problem. It pulls Third Earth, the ThunderCats' home, right into the sky above Eternia, He-Man's world! This kicks off a massive battle involving heroes and villains from both universes.

Worlds Collide

On Eternia, Prince Adam is getting ready for a ceremony. Suddenly, huge earthquakes shake the city! Everyone looks up and sees Third Earth appearing in their sky.

On Third Earth, the ThunderCats feel the quakes too. Their wise mentor, Jaga, appears as a ghost. He tells them that both worlds are now linked. They will either survive together or be destroyed together. Lion-O uses his Sword of Omens to see the danger ahead.

Mumm-Ra's Trick

Back on Eternia, the earthquakes cause a giant tidal wave. Prince Adam, his father King Randor, and his talking tiger Cringer are swept away. Adam saves his father and Cringer. He tries to transform into He-Man using the Power Sword.

But then, the Sorceress of Grayskull appears and tells him to give her the sword for safekeeping. Adam trusts her and hands it over. Shockingly, the Sorceress stabs Adam! It turns out she was Mumm-Ra in disguise! Mumm-Ra gloats, saying he sensed Adam's pure heart, which helped him trick Adam.

He-Man Rises and Skeletor's Plan

Even though he's badly hurt, Adam grabs the sword. He calls upon the power of Castle Grayskull and transforms into He-Man! His wounds heal instantly. He-Man and Mumm-Ra battle fiercely. Just as He-Man is about to win, Mumm-Ra vanishes.

Mumm-Ra reappears in a dark place. He hears the Ancient Spirits of Evil talking to someone. Before he can react, he's blasted into dust! The evil Skeletor appears and picks up the Power Sword. He tells the Spirits they have a deal.

Skeletor takes Mumm-Ra's ashes and the Power Sword to his lab. He discovers Mumm-Ra is still alive, even as dust! Skeletor explains he made a deal with the Spirits. He would get the Power Sword and Mumm-Ra in exchange for freeing the Spirits from their prison. Mumm-Ra had never been able to do that!

A New Kind of Power

Skeletor reveals his plan to Mumm-Ra. He can't use the Power of Grayskull on his own because it would destroy him. So, he mixes Mumm-Ra's ashes into a potion. This potion will link Mumm-Ra's "ever-living" power to Skeletor. This way, Skeletor can use the Power Sword!

Despite Mumm-Ra's protests, Skeletor drinks the potion. He calls upon the Power of Grayskull, gaining He-Man's strength! At the same moment, He-Man suddenly turns back into Prince Adam on Eternia. He collapses, and his father, King Randor, is horrified to see Adam's terrible wound.

ThunderCats to the Rescue

Skeletor is thrilled with his new power. He plans to keep the Ancient Spirits of Evil trapped, even though they helped him. Suddenly, his lair is attacked! A wall explodes, revealing the entire team of ThunderCats, led by Lion-O!

The ThunderCats bravely fight Skeletor, who is now super powerful. He laughs off their attacks. Lion-O manages to wound Skeletor, but Skeletor slashes Lion-O's eye with the Power Sword.

During the fight, Lion-O realizes that Skeletor and Mumm-Ra are now linked. He uses Mumm-Ra's weakness – his fear of his own reflection – to drive Skeletor away. Lion-O then grabs the Power Sword!

Adam's Fate and a New Threat

Skeletor teleports away, fighting an internal battle with Mumm-Ra for control of their shared body. Mumm-Ra takes over and returns to his original form, but this makes Skeletor lose the Power Sword's energy. They realize they are stuck together. Skeletor suggests they work together to get what they both want.

Lion-O and the ThunderCats arrive at the damaged Eternos city. They find all the heroes mourning because Prince Adam has died from his wounds. Lion-O is sad he couldn't return the Power Sword to its rightful owner. He talks with King Randor, who is heartbroken. Randor realizes what a true hero Adam was, even though he didn't know Adam was He-Man.

Suddenly, another earthquake shakes the city. Four giant creatures attack! Mumm-Ra and Skeletor have used their combined power to free the Ancient Spirits of Evil. They are now controlling these giants and sending them to attack Castle Grayskull!

A Desperate Plan

Lion-O pledges the ThunderCats' help to King Randor. He then gets an idea from a defeated villain. He takes Adam's body and flies back to Mumm-Ra's Black Pyramid on Third Earth, with Cringer by his side.

Lion-O hopes that putting Adam's body and the Power Sword into Mumm-Ra's sarcophagus will bring Adam back to life, just like it always brings Mumm-Ra back. At first, nothing happens. Lion-O uses the Sword of Omens to transform Cringer into his powerful Battle Cat form to deal with some looters.

Alone, Lion-O prays. Then, he hears a scratching sound from inside the sarcophagus. He hears Adam whisper, calling for the power of Grayskull! The sarcophagus explodes, and an enraged He-Man bursts out, attacking Lion-O!

He-Man is alive, but the strange combination of powers has made him lose his mind. Lion-O defends himself with the Sword of Omens. He manages to separate He-Man from the Power Sword. He-Man nearly drowns Lion-O in Mumm-Ra's mystic pool. Lion-O realizes he needs more power. He calls for the Sword of Omens to give him "Power Beyond Power!"

Now, with matched strength, Lion-O puts the Sword of Omens in front of He-Man. He-Man sees a terrifying vision of the future where Mumm-Ra and Skeletor have won. This snaps him out of his madness. He-Man thanks Lion-O, and the two heroes finally introduce themselves.

The Battle for Grayskull

He-Man, Lion-O, and Battle Cat rush back to Eternia. The four Ancient Spirits of Evil are already at Castle Grayskull. Skeletor and Mumm-Ra watch. King Randor has gathered an army, and the combined heroes attack the giants.

Inside the Castle, the Sorceress uses the Castle's defenses. Jaga's spirit appears and tells her there's a way to stop the Spirits. The answer is on the ThunderCats' destroyed home world, Thundara. The Sorceress opens a portal, and she and Jaga travel through it.

Outside, the heroes fight hard, but the Spirits are too strong. Man-At-Arms, Tygra, and Panthro build a powerful cannon. They fire it at one Spirit, but it just laughs! Tygra uses his illusion powers to make Grayskull disappear, confusing the Spirits.

Jaga and the Sorceress return with a Golden Disk of Knowledge from Thundara. They reveal that Skeletor and Mumm-Ra used similar disks to bring the Spirits to life. Each Spirit has a Disk on its chest. If the heroes destroy the Disks, the Spirits will be defeated!

Teela and Cheetara fly a vehicle and crash it into one Spirit's Disk, destroying it. Orko accidentally makes Snarf huge, and Snarf hits another Spirit's Disk, stopping it. Wilikit and Wilicat, with Buzz-Off and Stratos, destroy the third Spirit's Disk.

Mummator Rises

Tygra collapses, unable to hold the illusion, and Castle Grayskull reappears. The last Spirit attacks the Castle. The Sorceress creates a shield to protect it. Panthro and Man-At-Arms fire the cannon, knocking the Spirit back. While they are distracted, Tygra aims the cannon and destroys the final Spirit's Disk!

As the heroes celebrate, Skeletor and Mumm-Ra combine their powers. They absorb the fading energy of the Spirits. They transform into a terrifying new being called Mummator! This super-charged villain attacks the weakened heroes.

He-Man, Lion-O, and Battle Cat arrive, but it's too late. All the heroes are defeated, and Grayskull's drawbridge is open. He-Man tells Battle Cat to protect their friends. He-Man and Lion-O rush into the Castle.

The Final Showdown

Inside Grayskull, He-Man guides Lion-O through the maze. He explains that the Castle is a "nexus of worlds," a place where different realities connect. They find Mummator holding the Sorceress and an orb. This orb is the heart of the Castle, holding all its power! Mummator says he only needs He-Man's Power Sword to unlock the orb and control all realities.

He-Man and Lion-O attack. They realize they need to get Mummator away from the orb. Lion-O suggests using the Castle's reality-bending power. They push Mummator off a ledge, and all three fall into another reality.

They land in an Eternia controlled by Mummator. He-Man grabs the orb, and he and Lion-O use it to teleport away. They jump through different realities, even seeing a world where He-Man is a Superman-like hero on Earth. Mummator follows them, and in one reality, he manages to grab He-Man's Power Sword!

They land on Thundara just before it exploded. Lion-O sees his father staying behind so he and the other ThunderCats can escape. Mummator attacks, and during their struggle, they return to Grayskull. Mummator gets the orb from Lion-O.

Now, with both the Sword and the orb, Mummator summons all his minions to attack He-Man and Lion-O. But the Sorceress, who escaped, calls the recovered heroes to help!

Mummator begins to unlock the orb, and the Power of Grayskull flows into him. Even He-Man starts to weaken. Lion-O slashes Mummator's wrist and gets the Power Sword back, but it's too late to stop the orb from unlocking.

He-Man and Lion-O take one last chance. They combine He-Man's remaining power and the Power Sword with the Sword of Omens. They know this could destroy them both. He-Man fires his power into the Sword of Omens. Together, they summon "Power Beyond Power" at Mummator!

The huge energy blast overwhelms Mummator. He explodes back into Skeletor and Mumm-Ra, who then completely disappear!

Farewell, Friends

The powerful blast turns He-Man back into Prince Adam, but it also seals the orb. The Sorceress and Jaga declare victory! Lion-O sees a portal back to Thundara. He wants to go back and save his father. But Adam gently stops him. He explains that changing the past would change their present. Adam tells Lion-O that his destiny is in the future, just as Lion-O's father would have wanted. Lion-O sadly agrees.

Later, the heroes exchange thanks and gifts. The villains are loaded onto prison ships. Lion-O says goodbye, as Third Earth must return to its proper place. Adam, now back in his He-Man form, thanks his new friend. He says it will be strange now that King Randor knows his secret. Lion-O tells He-Man that it's good for fathers and sons to have no secrets.

He-Man says Lion-O is very wise for his age. Lion-O sheepishly admits he is actually twelve years old in his mind, even though he's in an adult body! He-Man is amazed and says Lion-O will be even greater as a man.

As the ThunderCats' ship takes off, He-Man and Lion-O shout each other's battle cries in farewell.