It was fine day at the Equestria Fair, where everybody was having good time playing games to where Rainbow Dash was showing Applejack and Sunset Shimmer the newest ride to the fair.

"Come on guys. " Rainbow Dash urged AJ and Sunset.

"Why I you so excited, Rainbow?" Sunset asked.

"Because they got an amazing new ride- the Furious Flyer Train." Rainbow said happily. "I saw them testing it earlier. It was so fast; it's going to feel flying."

"It seems you're not only one wants to ride it." Sunset joked as people were lining up.

"Everyone, The Furious Flyer Train is... gone!?" As everyone surprised that the ride was gone.

"It can't be gone; trains just disappear into thin air!" Rainbow exclaimed.

"True, but the track is a close circle so how could it get off and keep going?" Applejack wondered.

"AHHH! LEAPING LAB!" one person said.

Just then A mobile lab came out nowhere and rolled out of here.

"What in tarnation was that all about?" Applejack asked while still being shocked.

"Yeah, it looks like Melvin's Lab, but it all over the place. Maybe he's behind it." Sunset suggested.

"Good idea besides that slimy toad is always up no good with his wacky inventions."

Then Sunset's phone ringed.

"Its message from Twilight." Sunset looked her phone.

(If you're reading this Message, Me, Fluttershy, Rarity, and Pinkie Pie have started looking for the train.)

"Come on we better help others."

With that Rainbow Dash, Applejack and Sunset transforms in their crystal guardians' forms and their search for the missing train.

Meanwhile, Sci-Twi, Pinkie, Rarity and Fluttershy were in hot purist as they found train and the person who driving.

"MELVIN!?" Twilight, Pinkie, Rarity, and Fluttershy shouted.

"Well, hello, Ladies!" Melvin greeted them.

"Applejack and the others just saw you driving your lab." Rarity said.

"That wasn't me. No one driving my lab. Blasted thing short-circuited and took off. Good thing I've got this super-fast train to catch it, eh?"

"But where did these train tracks come from?" Fluttershy asked.

"Easy thanks to my invention- the Tracker Whacker. It makes tracks anywhere."

"Wow! That's kinda cool!" Twilight mentioned.

"And what even cooler is the other one at the back picks the tracks up again."

"Why do you need this train, let us help in getting your lab back!"

"HA! Like I'm giving this train once I get my lab! No way! With the tools from the lab, I can make this train even faster. Making me the fastest villain in world! Huh?" As Melvin looked on his screen. "A-ha! There you are my lab. Love to stick and chat but I've got lab to catch. Mua-ha-ha-ha!"

"Why that big meanie!" Pinkie said angrily as Rainbow Dash, Applejack, and Sunset has catch up the girls.

"Hey guys. Sorry for the delay." Rainbow said. "We had to make sure that people stay cleared from Melvin's lab."

"Speaking of that were is that slimy varmint." Applejack asked.

"Well, Melvin had stolen it so he can catch his lab and now we got to stop him before he makes the train even more dangerous and people in danger." Pinkie Pie said eating a cupcake.

"On it!" as Rainbow used her speed to catch up with Melvin.

"Oh, for the love-" Applejack sighed. "Why does she always run off beforehand."

"Allow me." Twilight using her magic to her and the others to teleport Rainbow and Melvin's location.

Meanwhile with Melvin who had just caught with his lab.

"Ha-ha! I've almost up with you, naughty lab!" As Melvin looked left and right for the Mane 7. "And no sight of those pony girls and didn't even matter they would catch up to me!"

"That what you think Melvin!" As Rainbow was on top of the train. "Let's do this!"

As Rainbow Dash makes jump to front of the train the daft coming flew off the train! Until Rainbow was caught Rarity before crashing into a tree branch!

"Thanks! I was almost bird feed!"

"No need for hasty actions Rainbow. We'll get there and stop him." Rarity reassured her.

"Ooh I got idea let sneak on him really slowly!" Pinkie suggested.

'Why be slow let just go!" Rainbow urged as she fell off the train causing Melvin to gasp.

"Huh? Those Pony Dudes couldn't be on my train, could they?" Melvin thought to himself. "Better make sure they're not!"

Melvin shook train hoping that the Mane 7 was on, but they were except the hold for dear life.

"Sorry guys!" As Rainbow Dash flew back to the gang. "Looks like Melvin found out we're on the train."

"It's OK. New plan- we all go after Melvin at once." Sunset said. "He can't stop all seven of us!"

"Right!" Mane 6 cheered happily.

"Okay! On three! 1... 2..."

"Come on, guys!" Rainbow Dash yelled as she jumped ahead.

"Wait! Rainbow Dash!" Fluttershy shirked

As Rainbow jumped on passenger-on-passenger car, the monitor screen was blinking that grabbed Melvin attention. He pressed a button the active a robot arm that capture her. She tried to escape it bit it held.

"Why didn't I listen to the others?" Rainbow wondered to herself. "Melvin's almost caught with his lab and because I was in a rush." Then her friends appeared.

"Rainbow?!" Pinkie exclaimed.

"Are you all right?" Twilight asked.

"I'm ok." Rainbow said with remorse. " But I'm so sorry. Every time you guys had plan, I rushed ahead without you and didn't work."

"It's ok." Rarity reassured her. "You were just really excited to the train."

"I'll take of this robot arm." Applejack said as she ripped the arm with her strength freeing her.

"Thanks AJ." Rainbow thanked her. " But now I've got a plan!"

Then the train horn went off as Melvin turned around.

"I know you're in there." Melvin smiled. " But not for long!"

Melvin shook the train even harder.

"Quick! What's your plan?" Sunset asked Rainbow.

"We're going to stop this train for good," Rainbow responded. " And we're going to it together. Twilight, you grab some branches, and pass to me, Rarity, you and Applejack get close enough to the Tracker Whacker. Then I fly the branches to you Applejack and you can use them to jam it and stop the tracks. Without tracks, this train won't ever catch Melvin's lab."

"I like it!" Pinkie said happily. "Let's do this!"

Melvin gasped as his lab was in range.

"Ok, My Tracker Whacker, more tracks! More Tracks!" As Melvin's Tracker Whacker made more tracks.

Twilight levitated some branches from the ground. She gave the signal that Rarity and Applejack were up. Both of were opposites side of the Tracker Whacker. Twilight passed the branches to Rainbow who then flew up and pass the track to Applejack which she caught it.

"Nice one! RD!" Applejack praised her which caught Melvin attention.

"What!?" He exclaimed. "Stop it, you fools!"

"Too late for that geek. AJ, Rarity do it." Rainbow said.

Applejack sticks the branches while Rarity used her gems to block it.

"NO!" Melvin screamed as the TW started go on the fritz. Melvin was shaking. But the girls were on the side of train.

"Whoa!" As Fluttershy used spirt form showing an astral image of a gecko allowing her to stick on it.

"Hang on to me, everyone!" She urged the others.

Sunset. Twilight, Rainbow, Rarity, and Pinkie grabbed on hold and yelled in motioned. The train turned around the corner and Applejack saw her chance warned the others to get off.

"I got this!" Applejack stopped the train in its tracks.

Melvin got off and started to groan. "Huh?"

"*Giggles* See Mevin. I told you we could catch your lab." Pinkie said as the lab came to a complete halt.

"My lovely lab! Yes! Yes! Yes!" Melivn said happily as he kisses his lab. "I might have lost my train, but I'll always have you, my lovely lab!"

" Now, let's get this train back home." Twilight said.

"Everyone is going to be so happy!" Pinkie said happily.

"I'll get you next time!" Melvin shouted as he rolled away in his lab.

"My word?!" Rarity exclaimed. "He didn't even say 'Thanks for helping!'"

"Don't worry, Rarity. We managed to the train. Besides I don't think that the last time we see him again." Sunset remained her.

And so, the Mane 7 was able to get the train back on the track and stop the mad scientist.

Next Chapter: Episode 2- Rarity's Cloud Crisis Estimated time remaining: 4 Hours, 48 Minutes