The Thundercats and Sailor Scouts cautiously searched the almost fallen Cat's Lair for Snarf, Snarfer, WilyKit and WilyKat. Even though Lion-O used his Sword of Omens to find them, it had been difficult because the rooms were so damage he had a hard time figuring out which room is which.

"WilyKit. Kat. Where are you?" Tygra called.

"Snarf. Can you here us?" Lion-O called out.

Cheetara gasped in pain and clasped her head. Lion-O and Sailor Moon ran to her side.

"What's wrong, Cheetara?" Sailor Moon asked.

"It's Kit, Kat, Snarf and Snarfer. They're here. Deep below us and they are running out of air." Cheetara told them.

"Lead the way." Panthro said.

The Thundercats followed Cheetara while the Sailor Scouts stayed where they were. They cautiously walked to the lower part of the lair avoiding a few slips and crevices to reach their friends. In front of the door that was trapping them were fallen beams, and a steel wall they fell from the side.

"Kit. Kat. Are you and the Snarfs in there." Panthro said.

"Yes. Hurry. Our air is running out." Kat said faintly.

"Everybody, stand back." Lion-O commanded. He aimed his sword at the door. "HO!" A light blue beam from the sword hit the door and the barricades and knocked it down.

Once the dust settled, Kit, Kat, Snarf and Snarfer crawled out gasping for air.

"Are you all right?" Cheetara asked.

"We are now." WilyKit said taking in a large breath of air. "Mumm-Ra attacked us, Lion-O."

"We know, Kit and he freed the mutants and lunataks and they took over 3rd Earth." Lion-O explained.

"We brought some friends with us that will help defeat them." Tygra said.

"Friends? Who?" Snarfer asked.

"We'll explain later, but we have to defeat our enemies and I have a plan. Panthro, Tygra, and Bengali, I want you three and the rest of the Thundercats to check our vehicles and see if they are working. They need to in order for my plan to work." Lion-O instructed his people.

"We'll get right on it, Lion-O." Bengali assured Lion-O.

Nearly an hour later, everyone regroup outside Cat's Lair to hear Lion-O's plan. Luckily, the Thundertank, Feliner, and Thunderstrike, weren't badly damaged.

"For this plan to work, we will have to split up. I will stay on Thundera and fight Mumm-Ra." Lion-O said.

"No! I won't let you, Lion-O. You see the destruction Mumm-Ra did to our planet. He seems to be more powerful now and will definitely want revenge on you for leaving him in the Book of Omens." Cheetara told him concerned for his life.

"Cheetara, I have fought Mumm-Ra before and won. I can do it again."

"I have a bad feeling about this battle. I'm fighting with you no matter what you say."

"I'm fighting with Cheetara, too." Sailor Moon said bravely and continued. "From what Cheetara told me, Mumm-Ra is very powerful and you'll need all the help you can get. My silver crystal is almost as powerful as your sword of omens. I can help you defeat him."

"And I'm staying with Sailor Moon." Tuxedo Mask added.

"Very well, you three will stay with me. The rest of you will go to 3rd Earth and rescue Lynx-O, Pumyra, and the rest of 3rd Earth. Tygra, you and WilyKit and WilyKat will rescue Pumyra from Castle Plundarr. The rest of you will rescue Lynx-O from the Lunataks at Skytomb. Once you do that, I want you to blow up Castle Plundarr, Skytomb, and the mutants and Lunataks vehicles. I'm pretty sure you all know why." Lion-O commanded. "Sailor Moon will give order to her scouts."

"Sailor Venus, Jupiter and Mercury, you will fight the Lunataks with Panthro and Bengali. Sailor Mars, you will join Tygra's group to fight the mutants." Sailor Moon commanded.

"We modified the portal so that when we open it, we will easily be transferred to 3rd Earth's galaxy. We'll be there in a couple of hours." Tygra told everyone.

"Well, if we're going to do it, let's do it." Panthro said.

"Thundercats HO!" The Thundercats cheered together with their right hands in the air.

"Sailor Power!" The Sailor Scouts cheered.

The Thundercats and Sailor Scouts left Thundera in the Thunderstrike and Feliner. Lion-O, Cheetara, Sailor Moon, and Tuxedo Mask watch Tygra open the portal in the Feliner. It was a large blue screen. The Feliner and Thunderstrike warmed up and flew in the portal. The portal closed as soon as the Feliner and Thunderstrike entered. Once it closed, Lion-O, Cheetara,Sailor Moon, and Tuxedo Mask got in the Thundertank and headed for Mumm-Ra's pyramid.

At the dark pyramid, Mumm-Ra felt a disturbance of good on the planet. He stepped out of his tomb and looked in his boiling cauldron. He couldn't believe his eyes when he saw Lion-O, Cheetara, Sailor Moon, and Tuxedo Mask in the Thundertank, heading to his pyramid. "What?! Jedite must have failed. I know the Ancient Spirits of Evil took care of him. However, they will not defeat me. Ancient Spirits of Evil, transform this decayed form to Mumm-Ra, the ever-living!"

The Ancient Spirits of Evil stepped off their stone pedestals and together picked up Mumm-Ra and dropped him into his cauldron. The power he was receiving transformed him into his most powerful form ever. He rose from the cauldron, feeling the new strength and power that was given to him. He laughed maniacally, preparing for the end of his enemies.

"This will be the final battle between the Thundercats, and I will be the victor." Mumm-Ra viewed the cauldron showing the Thundertank getting closer to the pyramid. He noticed they will have to get through some ruins. He blasted his mystical power in the cauldron, commanding the ruins to come to life.

The drive to Mumm-Ra's pyramid was calm until the ruins were coming alive and turning into mutated monsters. "We've got trouble." Lion-o said

"I'm on it." Cheetara said and got in the back of the Thundertank. She loaded the cannon in the Thundertank. The tank's top opened and Cheetara shot lasers at the monsters. "It's no question that Mumm-Ra's behind this."

Tuxedo Mask helped out by getting in the front seat and shooting lasers from the front of the tank. Once the monsters were shot down, there was a clear passage to Mumm-Ra's pyramid. Lion-O stopped the tank in front of the black pyramid and jumped out.

"This is it. Our last battle with Mumm-Ra. Let's go." Lion-O said.

The four entered the pyramid and when they entered the Throne Room, Mumm-Ra wasn't in sight. Lion-O opened the mummy's tomb, but it was empty. "Where could he be?" Lion-O asked himself as he turned around and saw Mumm-Ra above Cheetara, Tuxedo Mask and Sailor Moon. "Mumm-Ra!"

Mumm-Ra laughs evilly and everyone look up. "You think you can defeat me now with extra help? Wrong!" He said and opened the Sword of Plundarr. He twirled the sword and shot the sword's flames on the three victims below him, but they dodged out of the way and moved towards Lion-O.

Lion-O took out his sword and aimed it at Mumm-Ra. "HO!" He shouted and the Sword of Omens shot a blue light at the Sword of Plundarr. Mumm-Ra twirled his sword and forced the flames on the Sword of Omens power. It was a stalemate until Sailor Moon and Cheetara got involved.

Sailor Moon took off the Silver Crystal from her uniform and aimed it Mumm-Ra. "Moon Crystal Power!" A bright, white beam shot at Mumm-Ra, and at the same time, Cheetara summoned her telekinetic power and shot it at Mumm-Ra.

With each person using their power, Mumm-Ra was being pushed backed until he strengthen the force of the Sword of Plundarr. When he did that, each blast from the sword of Plundarr hit them. Lion-O had his sword in front of him to protect him, but was pushed back to hit Mumm-Ra's sarcophagus hard. Luckily, he wasn't unconscious. Cheetara formed a force field around her just in the nick of time before the blast fully hit her. She was pushed back and hit a wall. Sailor Moon screamed her lungs out as the blast came hurdling at her. Tuxedo Mask grabbed her but fell back a few feet when he was hit on the shoulder, leaving it bruised.

After firing on them, Mumm-Ra was breathing hard. Using the sword with extra force almost took the wind out of him. That had never happened to him before. "Now I'm angry, and you all will pay with your lives." He said very pissed off.

It wasn't hard sneaking into Castle Plundarr and rescuing Pumyra. It was getting out because opening Pumyra's prison, set an alarm off, and now the Thundercats and Sailor Scouts were in a battle with the mutants. They couldn't reach the Feliner for a proper fight so they had to fight the mutants with their weapons and the mutants attacked with their weapons and vehicles. Tygra was taking care of Slythe who was on the Nosediver.

Slythe saw Tygra and decided to hit him head first, but Tygra wrapped his whip around him and vanished. Tygra, invisible, ran to a tree and go an idea. He became visible again and using his illusion power, made the tree disappear. Slythe saw Tygra and put his Nosediver to full speed as he flew towards Tygra. When he was close enough, Tygra jumped out of the way and Slythe hit the tree. The Nosediver was completely damaged and Slythe was unconscious.

Before leaving Thundera, WilyKit and WilyKat made sure they got their space boards. They were being chased by Monkian in the Skycutter.

"You can't catch us." WilyKit teased.

"Yeah. We're too fast for you." WilyKat teased .

"Hoo. Hoo. I'll show you who's fast. Monkian said and increased the speed of his Skycutter and shot lasers at Kit and Kat.

They dodged Monkian's fighters by flying higher in the sky. They lowered their space board near the ground, and WilyKit threw an explosive at Monkian. It temporarily blinded him. WilyKat took out his lariat. He threw his sister one end of the lariat while he held the other. They stretched the lariat and Monkian still blind flew into the lariat. It caught him by the neck and he was thrown off the Skycutter and fell on the ground unconscious.

Pumyra threw her explosives at Jackalman in the Skycutter. It caused him to crash, but the battle wasn't over. He got out of his vehicle and shot at her with his laser gun. Pumyra dodged each shot with her agility. She gathered enough speed and agility to run towards Jackalman and knocked his gun out of his hand and punching him in the face.

"That's for kidnapping me and locking me up."

Sailor Mars had her hands full fighting Vultureman in his flying machine. "This broad is toast." Vultureman said and shot at Sailor Mars.

Sailor Mars jumped out of the way and summoned her fire power. "Mars Celestial Fire Surround!" Sailor Mars celestial fire burned the wings off Vultureman's aircraft and he crashed.

Vultureman got out upset. "You'll pay for that you-"

Sailor Mars shut him up with a karate kick in the face, that immediately knocked him out.

"You mess with fire and you get burned."

After tying up the mutants, Tygra and the rest of the group joined Sailor Mars.

"What do we do now?" Sailor Mars asked.

"We put the mutants in the storage room in the Feliner and joined the others at Skytomb. Defeating the Lunataks won't be as easy as the mutants." Tygra said.

Tygra was right. The Lunataks proved to be more formidable. In Skytomb, Luna screeched out orders. Panthro took care of Tugmug while he was in the Thunderstrike. Alluro, Chilla, and Redeye were battling Sailor Venus, Mercury, and Jupiter. While they were fighting, Bengali was able to sneak in and look for Lynx-O.

Alluro stood a few feet in front of Sailor Venus. This will be too easy. He thought. "Give up, little girl. You're no match for me." He said in a seductive but cocky tone.

"We'll see about that." Sailor Venus said bravely.

Alluro threw his orb over Sailor Venus and a light green light glowed over her. "You will surrender to me."

"Surrender to you." Sailor Venus said in a monotone voice.

Panthro saw what was happening and took out his nunchuks, and blasted the orb with the lasers embedded in his nunchuks.

"No!" Alluro yelled.

Sailor Venus snapped out of her trance and called her powers. "Venus Love Chain Encircle!" Her love chains shot like a yellow blur at Alluro and encircled him.

Sailor Mercury was to battle Chilla. Chilla, of course wasn't looking impress at her foe. "Don't tell me this little girl thinks she can beat me." Chilla said unimpressed.

"Shine Aqua Illusion!" Sailor Mercury shot her ice water powers at Chilla.

Chilla blew her ice breath at Mercury's aqua illusion and it froze.

"Mercury Ice Storm Flash!"

Chilla blew her ice power again, and Mercury saw her powers flying back at her so she jumped out of the way, but she was still hit. Half her body was frozen by the blast. Mercury fell on the ground weak and vulnerable. The Feliner landed and Sailor Mars jumped out.

"Oh, good. Another one." Chilla laughed and blew her ice breath at Mars.

Mars dodged out of the way, and use her fire power to free Sailor Mercury. "Let's take care of this ice witch."

"Ice witch?" Chilla said insulted.

"Mars Celestial Fire Surround!" Sailor Mars shouted.

"Mercury Ice Storm Flash!" Mercury joined her.

Chilla used her powers on the two Sailor Scouts, but it wasn't enough to defeat them. The Sailor Scout powers overpowered Chilla and everything went black around her.

Sailor Jupiter was dodging Redeye's laser. The battle between them was coming to an end and they both knew it.

"This ends now, Laser Face!" Jupiter told him.

"Yes, with me as the victor." Redeye said as he threw another laser disc at Sailor Jupiter.

"Jupiter Thunderclap Zap!" Her lighting powers destroyed Redeye's laser disc and hit is eyes, blinding him. She finished him by giving him a quick karate kick in the face. "Can't mess with thunder and lighting."

"That's the last of them. WilyKat said as he and the rest of the Thundercats and Sailor Scouts joined Sailor Jupiter.

"Not really. What about Luna and Amok?" WilyKit asked,

"We took care of them." Bengali said as he and Lynx-O joined them from Skytomb.

"We have them tied up inside." Lynx-O added.

"There's only one thing to do now." Panthro said.

"What's that?" Pumyra asked.

"Lion-O wants us to blow up Castle Plundarr, Skytomb, and the mutants and Lunataks vehicles. It was left standing as a reminder of the evil that plagued 3rd earth, but it also left a reminder that they will come back so Lion-O wants it destroyed." WilyKat explained.

"Your 3rd Earth is so different from ours. I'll be glad when we get back home." Sailor Mars said.

"I'm pretty sure you will, but until then let's carry out Lion-O's orders and hope the he, Cheetara, Tuxedo Mask and Sailor Moon are doing well with their battle with Mumm-Ra." Tygra said.

Mumm-Ra powered up the Sword of Plundarr and charge at Lion-O, thus starting a powerful battle between the Sword of Omens and the Sword of Plundarr. Cheetara got on Lion-O's right side and aimed her power at Mumm-Ra, while Sailor Moon shot her Moon Crystal Power at Mumm-Ra. Mumm-Ra screamed at the two forces. He pulled back from Lion-O, twirled the Sword of Plundarr with his left hand. He focused the sword's power on Cheetara, and magical power from his own hand on Sailor Moon. Sailor Moon was pushed back with her crystal. Cheetara dodged out of the way and the beam from the Sword of Plundarr hit a wall behind her. The wall came crashing down on the floor, causing it to open beneath Cheetara. She wasn't quick enough to jump out of the way.

"Aah!" She screams as the floor fell beneath her. She grabs on the edges of the floor that didn't fall down. However, she was hanging 100 feet above the room below her.

Lion-O and the others came to Cheetara's aid to help pull her up. Mumm-Ra saw this as an opportunity to finish his enemies. He twirled the Sword of Plundarr and blasted the power on Lion-O, Sailor Moon, and Tuxedo Mask. They scream as they all fell in the floor. Cheetara used her telekinetic power to form a force field around everyone, causing them to land safely in Mumm-Ra's treasure room.

"Wow! Look at all the treasure." Sailor Moon said in awe.

"Never mind that. We have to think of a way to beat Mumm-Ra." Tuxedo Mask said.

"Tuxedo Mask is right. The way we're doing it isn't working." Cheetara added.

"Have you two been using your power to its fullest?" Lion-O asked.

"No." Cheetara and Sailor Moon answered.

"Neither have I. I think that if we use our powers to its fullest, we can defeat him once and for all." Lion-O told them.

"I'm for it." Cheetara said.

"I may be a little weak afterwards, but I'm in." Sailor Moon said.

"Good. Grab my arm, and let's finish off Mumm-Ra once and for all." Lion-O said determined. Cheetara grab Lion-O's right arm and Sailor Moon and Tuxedo Mask grabbed his left arm. Lion-O aim the swords end to the floor. "HO!" He shouted and the Sword of Omens acted like a rocket as flew them out of the treasure room and back in the throne room. "This ends now, Mumm-Ra!" Lion-O shouted at Mumm-Ra who was floating over his cauldron

"Yes, it does." Mumm-Ra said as he put all his strength in the Sword of Plundarr, and force the power on his opponents.

"Sword of Omens, give me all your strength and power to defeat Mumm-Ra! HO!" He commanded his sword. Suddenly all the power from the mighty Sword of Omens shot at Mumm-Ra, but he was protecting himself with the Sword of Plundarr.

"Moon Crystal Power!" Sailor Moon used all the power in the crystal and blasted it on Mumm-Ra.

Cheetara summoned all her telekinetic strength and turned into a bright yellow ball of energy and shot everything she had at Mumm-Ra. Tuxedo Mask took out his roses and threw it at Mumm-Ra's eyes. He became blinded and dropped the Sword of Plundarr into the cauldron. Without the Sword of Plundarr to protect him, the powers from Lion-O, Cheetara, and Sailor Moon hit Mumm-Ra at full force. He was defenseless against all three powers at it limits. He began to weaken and shrivel into his old weak mummy form. He fell from above to his knees in defeat.

"No! This cannot be!" Mumm-Ra told himself.

The Ancient Spirits of Evil eyes glowed angrily. "You have failed, Mumm-Ra!" The ancient spirits said angrily.

"It's only a minor setback ancient ones."

"A minor setback you will pay with your life." The ancients spirits said. Their eyes glowed even redder. They looked down at him and shot their eye beams on Mumm-Ra. A large glass surrounded him and he couldn't break out. "You shall be banished to the black hole forever, where you will never escape." The eye beams were more forceful on Mumm-Ra and he vanished. He was sent to serve out his punishment.

The pyramid begin to shake and crumble apart. The Ancient Spirits of Evil statues began to tear apart and fall. In a few minutes, the pyramid would crash in. Everyone took this as the opportunity to run out before everything inside fall on them. When the ran out, the pyramid crashed in. The skies cleared up, and for the first time in a long time, blue skies and the sun shined over the black pyramid. All over Thundera, the red skies fade away and was turning blue again. The battle with Mumm-Ra was finally over and the Thundercats had won.

"We did it. We defeated Mumm-Ra, and this time, it's for good." Cheetara said relieved.

"Is everyone all right?" Lion-O asked.

Everyone nodded. "But what about our friends on 3rd Earth?" Sailor Moon asked.

Lion-O pulled his sword to his eyes. "Sword of Omens, give me sight beyond sight." Lion-O commanded. Through the sword's hilt, he saw the Thundercats and Sailor Scouts defeating the Mutants and Lunataks. "Our friends are fine. They defeated the Mutants and Lunataks and are taking them back to Way Outback." Lion-O answered.

A couple days later, the Sailor Scouts stood in front of the portal, saying good-byes. Cheetara gave Serena a hug. "Thank you for all you've done. We couldn't have defeated our enemies forever without your help."

"It's no problem. Besides, we owe you for helping us defeat Jedite once and for all. If you need us, you know where to find us." Serena smiled.

"And if you need us, you know where to find us." Lion-O told her.

"We will." Serena said speaking for everyone. The scouts waved one more time and stepped into the portal. It closed once Serena stepped in.

"It's hard to believe isn't it?" Tygra asked.

"That after all these years, we finally have peace and love." Lion-O said as he put his arm around Cheetara.

"We have that and a lot of rebuilding to do here and on 3rd Earth. So if we're going to do it...." Panthro said.

"Let's do it!" Everyone finished Panthro's famous line. "Thundercats HO!" They cheered.