Danny and the Turtles are walking through an old subway tunnel with torches and backpacks.

MIKEY- What you might ask yourself, would any sane turtle or half-ghost would be doing in an abandoned subway tunnel deep under the city?

The tunnel suddenly begins to rumble and shake, small amounts of debris falls from the roof and they all look around nervously knowing the loudest of noises will cause the entire tunnel to collapse right on top of them.

A tunnel so decade it's going to collapse from just one little noise and a huge weird thing howling at the top of its lungs!

Mikey suddenly gasps as he sees some sort of shadowy monstrous looking creature coming towards them roaring loudly into the air.

Funny! I'm asking myself the same question!

The tunnel shakes harder as the thing continues to roar and suddenly one of the support beams break and Danny and the Turtles shout and scream as they begin to run just as the tunnel suddenly begins to collapse!

TMNT 2003 S01E13: Notes From The Underground PART 1

In the living room Mikey was watching a black and white monster movie. He watched as the monsters came closer towards the couple and he said along with the man in the film as he said, "Perhaps there are some things man was never meant to tamper with"

Mikey finished his bag of chips and then turned off the TV. He yawned tiredly and then noticed Donnie and Danny was working in Donnie's lab. Donnie was looking at the sky blue crystals through his microscope. Mikey walked up to him and asked, "Hey Donnie. What 'cha guys doing?"

"I'm checking out these crystals we found when we moved in here" Donnie answered as he continued to look through the microscope. "Trying to classify them but I can't find anything like them in the books. The microscopic crystal structures are linked almost like mutated brain cells"

Mikey made an eerie noise causing Donnie to look at him strangely and ask, "I beg your pardon?"

"Late night monster movies" Mikey clarified. He pointed the light at him and said in a fake deep voice, "Perhaps there are some things that man was never meant to tamper with"

He chuckled as he picked up the crystals and held them together as he said, "Nothing says a turtle can't tamper with though"

Suddenly the crystals started glowing and releasing a bit of a high pitched noise. Danny, Leo, Raph and Master Splinter heard the noise and came out as Splinter asked, "Donatello what is it? What is happening?"

"What's with the noise?" Raph asked.

"I'm….not quite sure" Donnie answered a little nervously.

They were all unaware that somewhere deep underground the noise the crystals were making had alerted three shadowy creatures. Donnie picked up one of the crystals with a pair of crucible tongs and as soon as it was removed from on top of the other crystal, they both stopped glowing and the noise stopped.

"Are we in any danger my son?" Splinter asked.

Donnie looked at the crystal in confusion and said, "Maybe the harmonics of the energy signature of the crystalline structure….."

"You don't know do you?" Danny asked cutting in. Donnie admitted, "Not a clue"

"I started the whole thing" Mikey said proudly.

Suddenly the alarm went off and Leo asked, "Now what is it?"

"Something tripped a permitter alarm in one of the old subway tunnels" Donnie said as he went to the monitor screens.

As they watched the camera they suddenly watched something zoom right past the camera at top speed causing everyone to shouted, "WOAH!"

"What in the world?" Leo asked. Raph pulled out his sais and said, "Sewer rats are getting bigger"

"Yeah! Time to cut the cheese" Mikey said causing everyone to groan. "That's not what I meant"

"Let's roll" Leo said and then he along with Danny, Don, Raph and Mikey ran outside of the lair to go and investigate exactly what had triggered the alarm. Before leaving Donnie grabbed his duffle bag and then followed then out.

Using the Sewer Slider Danny and the Turtles drove down the sewers heading for the spot the camera had spotted the figure that triggered the alarm. Leo then said, "Let's not announce ourselves. Switch to stealth mode"

Danny pulled the leaver on one of the controls and immediately the vehicle became quiet as a mouse. They stopped around the corner and started looking around the area but there wasn't any sign of any creature around.

"Nothing" Raph said.

"Don't be too sure" Donnie said as he pointed his torch to the roof and showed what looked like footprints heading somewhere.

"What have you got?" Leo asked as they followed the prints.

The prints led to a tunnel that had been dug through the wall of the sewer leading somewhere. Donnie then said, "These tracks are melted right into the stone of the walls"

"And whatever it was it tunnelled right through the cement" Danny commented.

Donnie handed Raph his torch for a moment and pulled out a small hammer and plastic bag and ripped off a piece of the rubble as he said, "Looks like the molecules have become un-bonded. Maybe some kind of catalyst or an acid"

"Okay this is the part of the monster movie where the first attack happens" Mikey said starting to feel scared. "The first guy never makes it! Need I say more?"

"Just calm down Mikey until we find out what this is" Leo said. "What is this?"

"Another mystery" Donnie answered as he put his stuff away back in his bag. "One thing's for sure though. I…."

"Never seen anything like this" Mikey finished along with Donnie.

"That's it! I'm outta here!" Mikey shouted in fear as he jumped onto the Sewer Slider and pulled out his nun chucks ready to fight.

Raph smirked and joked, "Hey what do you get when you cross a turtle and a chicken? Mikey"

"I need to get back anyway and analyse this and to find out just what we're dealing with here" Donnie said as they all headed back to the Sewer Slider unaware that a pair of red pupiless eyes was watching them from the tunnel growling.

They went back to the Lair where Donnie took the wall sample and dropped some acid onto it but nothing happened except some steam came off it. Donnie removed his face mask and said, "Hmmmm"

"Was that a good 'hmmmm' or a bad 'hmmmm'? Cause this is the part in the movie where we should be looking for the monsters one weakness or we can kiss our shells goodbye!" Mikey said in a panic. "Trust me! You don't want to underestimate a monster!"

Raph walked up to Mikey and splashed the rest of his water that he was drinking into his face. Mikey shook his face dry and said, "Thanks"

"What can you tell us Donatello?" Splinter asked.

"It looks like that creature melted right through the stone. Similar to how Danny can turn intangible and phase right through walls only this creature just melted to rock in order to get through" Donnie answered. "Being able to liquefy stone is the perfect ability for a subterranean lifeform"

"I am hearing answers that raises more questions" Splinter said. "A wise strategist gathers all his information before deciding on a course of action"

Leo got up from the floor and said, "Anybody up for a fact finding mission?"

"If something's out there looking for us, I say we find it first" Raph said agreeing with Leo.

"All in favour say aye" Leo said.

Leo, Raph, Danny and Donnie placed their hands on top of each other as they said, "Aye"

They all then looked at Mikey who smiled nervously and just said as he placed his hand in, "Meep!"

"Close enough" Leo said.

"Good luck my sons and may you return safely" Splinter said as they started heading off to get ready. Raph and Danny then both stopped as they heard Mikey behind them imitate Splinter while not following them, "Yes my brothers. Good luck to you"

"Come on!" Raph and Danny said as they both grabbed him and pulled him along causing him to yelp.

After grabbing all the supplies they needed and placing them into backpacks including the two crystals Donnie had in case they needed them, they all went back to the tunnel and climbed inside. Mikey gestured for Danny to go in first and just when he thought he was gonna get away, Danny grabbed Mikey and pulled him along.

They walked all the way through the tunnel until they finally came to the end of it which led them to an old subway tunnel. Old trains were sitting on the tracks and the entire place was dark giving it a completely gloomy look.

"What is this place?" Danny asked.

"There's a whole network of abandoned subway tunnels from the early 1900's down here" Donnie answered as they started walking down the tracks, holding their torches to the path to give them light.

"Abandoned? Right" Mikey said and they all stopped as they heard some noises.

Donnie pointed up and said, "Hear that creaking? These old supports should have given out long ago. I suggest we all be really, really quiet"

They continued on unaware that two figures were following behind them. As they continued along Leo asked, "Any sign of the creature's tracks?"

His question was answered when they found some of the tracks in the ground. Mikey smiled nervously and said, "Well nothing! Let's go home"

The others however ignored him and continued on. Mikey nervously followed behind them, not liking one bit that they were on a monster hunt. As they continued on, they all stopped suddenly when the tunnel shook and more tiny bits of debris fell from the roof.

"Everyone keep still!" Leo whispered.

Unfortunately some of the dust itched Mikey's nose and just when he was about to sneeze Raph ran up to Mikey and covered his mouth and snapped quietly, "Not a sound! Get it?!"

"I got it" Mikey said as he pinched his nose making his voice sound funny for a moment.

They didn't even make it five steps when suddenly Mikey couldn't help it and let off a very loud sneeze. His sneeze echoed throughout the tunnel and caused a little more debris to fall but luckily for them the tunnel didn't collapse.

"Mikey for crying out loud! Next time bring an antihistamine!" Raph snapped.

"Hey! How was I supposed to stop a…." Mikey began but then stopped and exclaimed as he pointed behind them, "A huge grotesque and horrifying monster!"

They all turned and saw right behind them was a huge rocky looking monster with razor sharp teeth. They all gasped and Danny changed into his ghost form as it then roared causing the tunnel to shake and rock even harder. The support beams suddenly collapsed and the entire tunnel started coming down. Danny and the Turtles screamed and shout as they all started running to escape the collapsing subway tunnel.

Danny placed a shield around them hoping to keep some of the debris from falling on them until they finally reached the end of the tunnel but their torches were destroyed leaving them in complete darkness. Raph then muttered sarcastically, "This gets better and better"

"Just a sec" Donnie and Danny both said in unison.

Danny lit his hands with his energy giving them some light while Donnie pulled out the crystals and placed them together to give them some light as well.

"Much better. Now we can actually find our way through these tunnels" Danny said.

"Do you think that thing survived?" Raph asked. Mikey then exclaimed, "Know your monsters Raph! They can melt rock!"

"Oh I forgot! Maybe I was trying not to get buried in A COLLAPSING SUBWAY TUNNEL!" Raph shouted in Mikey's face getting really annoyed with his brother's constant fear of monsters.

"Everybody calm down!" Danny said. "Panicking and fighting with each other is not gonna help anyone"

"Danny's right. Let's just keep moving" Leo said.

They continued to follow the tracks until they reached the end of a ledge and saw the tracks leading down over it. Donnie handed the crystals to Leo to hold while he reached into his bag and pulled out some rope, he tied one end of the rope tightly to a rock and repelling down the side of the rocky wall with the others following behind him, unaware that not only the rock-like monster from before was behind them but also another creature.

They continued to repel down until they finally reached the bottom, each of them sitting down feeling exhausted. Mikey groaned, "Even my back ache's got a back ache"

"Let's make camp for the night. Who's up for first watch?" Leo asked.

"I will" Danny said. Raph then said, "I'll take the second watch in about three hours"

Using the crystals as a makeshift campfire, Danny kept constant vigilance of the others and the area around their camp. Danny's then checked the time on his watch and then woke up Raph and said, "Hey Raph it's time for you to take watch"

Raph yawned and nodded as he got up and sat down by the wall with his sais ready. Danny changed back into his human form and laid down in his own sleeping bag, instantly falling asleep as he felt so exhausted.

An hour later as Mikey and Danny slept a dream started forming in their heads…..

MIKEY AND DANNY'S DREAM

They were standing in the middle of the lair and then watched as the room spun around for a moment and stopped as the elevator stood before them. They walked up to elevator as the door suddenly began to glow like the crystals they found and when the doors opened there was a blinding flash of light and it opened to reveal what looked to be some kind of underground city.

"What the shell?" Mikey asked as they started walking down the path leading to the city.

"What is this place?" Danny asked as he followed behind Mikey.

They entered the city but there was no sign of other life there. Danny then called out, "Is there anybody here?"

No answer came but then suddenly a shadowy mist appeared from the top of one of the towers and came down towards them.

"WHAT THE HECK?!" They both shouted as the mist suddenly roared right at them as a red mouth formed and started trying to attack them.

"NO!" They both shouted as they started running away from whatever was attacking them….

Mikey and Danny groaned from the dream they were having and then woke up to Raph's shouting, "Guys wake up! We're under attack!"

Everyone immediately got out of their beds and Danny changed back into his human form as Raph finished, "Our friend is back!"

They all could hear the roaring and felt the area around them shake. Mikey then asked, "So running would be good right?"

Danny and Leo looked up and saw one of the creatures pushing a boulder down the cliff and they both immediately shouted, "RUN!"

They all quickly grabbed their stuff and immediately started running from the boulder as it came after them at full speed. Danny then shouted as he took off in the air, "GRAB ON GUYS"

Each of them grabbed onto each other and then grabbed onto Danny as he used all his superhuman strength to carry all of them in the air. He stopped at the broken bridge and held them all up as the boulder rolled off the bridge and fell into the cavern below as Mikey shouted, "COWABUNGA!"

Danny placed them all down as Raph said, "Mikey I told you. No more cowabunga"

"I love a little excitement first thing in the morning. Nice save there bro" Mikey said to Danny.

Danny panted and gave a smile. Raph then asked, "How are we gonna get back with those things bowling for turtles and half-ghosts?"

"Well I'll can just fly us back over there" Danny said. He then panted a bit as he changed back into his human form, "Once I get my energy back a bit"

Donnie turned and noticed some sort of old high tech room. He called out to the others, "Look at this"

They all turned and saw what Donnie had found. Donnie held out the crystals and said as he gestured to the dented and broken doors, "Not to make things worse but you'll notice the doors was forced open from the inside. Something was trying to get out"

"Oh that doesn't make things worse" Mikey said sarcastically and then finished more scared than ever, "It makes things horrifying!"

Leo shushed him as they all then dropped their back packs and entered the room. They all looked around to see broken containment units, dissection tables, a control centre and all different kinds of tools and scientific equipment.

"Anybody got a clue what this place is?" Danny asked. Mikey asked as they began to walk around the place, "You wanna wild guess?"

Danny was silent at first but then answered, "No"

Donnie looked at all the equipment and said, "I'm seeing devices related to physiology, biology, geno-analysis and paranormal studies…my guess this is a genetics lab. They were experimenting with mutation and something to do with the paranormal"

Mikey gasped and stepped back in fright but accidently touched a yellow beam that was near a stair case. Suddenly an alarm went off and the other's shouted, "MIKEY!"

Suddenly the doors closed and the crystal sitting in the middle of the control panel started glowing and sending a beam to the roof.

"WHAT THE SHELL IS THAT?!" Mikey exclaimed.

Suddenly the energy started coming towards them as Donnie concluded, "Looks like some kind of force field"

Raph pulled out his sais and went up to try and take down the field but his sai just got caught and phased right through and started pushing Raph back.

"WHAT NOW?!" Raph shouted.

"Something's telling me do not touch" Mikey said.

"Gee! You think?!" Raph said sarcastically.

Donnie suddenly fell over but the force field kept pushing them back. Leo asked, "Donnie are you okay?"

Something tells me this force field only affects living tissue!" Donnie said as they kept getting pushed back up to the wall.

"Too bad that's exactly what we're made out of!" Danny shouted as he was pushed back further and suddenly when his hand touched the energy field it started shocking him hard causing him to shout in pain.

"DANNY!" Leo, Raph, Mikey and Donnie shouted as they saw their brother feeling pain.

"Donnie! What do we do?!" Leo exclaimed as they were backed into the wall.

"I'M THINKING!" Donnie strained.

"WELL THINK FASTER OR WE'RE ALL GONNA BE A WHOLE LOT THINNER AND DANNY WILL BE COOKED LIKE CHICKEN!" Mikey shouted.

Donnie looked around trying to think of a solution as they continued to be squashed against the wall and Danny being continuously shocked. He then saw the crystal in the middle of the control panel and exclaimed, "THE CRYSTAL! It somehow powering all this! Raph your sai can go through the field! Aim for the crystal!"

Raph grabbed his other sai and with great difficulty he aimed for the crystal and threw it through the field where it hit the panel and short circuited the machine and the force field immediately disappeared causing them all to fall on the ground and Danny was no longer being electrocuted.

They all immediately ran over to Danny and helped him stand up as he groaned weakly. Leo then asked, "You okay bro?"

Danny groaned and answered, "I'll be fine. Just…feeling a bit weak"

"Looks like that's the end of that" Raph said as he picked up his sais.

"It's only the beginning. Look at this" Donnie said as he walked up to the video screen where it started playing a film.

The video showed the Foot Ninja symbol causing them all to gasp in shock. Donnie said, "It's the sign of the foot"

"Why is it every time we get into trouble that symbol is stamped right in the middle of it?" Danny asked.

Donnie walked over to the main controls and said as he looked through the videos, "These look like some kind of archived video logs. I'll see if I can access them and try and see exactly what the Foot were doing down here"

He pressed a couple of switches and suddenly one of the archives started playing showing multiple Foot tech soldiers working in a lab. The main scientist then appeared and started talking, "Day one. Project commences. Master Shredder believes his enemies have taken refuge underground. Our foot soldiers have been unable to locate them so the genetic division has been directed to mutate human subjects so they can explore deeper into the earth. One of Master's allies Vlad Masters has been most generous in providing the technological equipment and one of his own ghostly allies to assist us with our project"

The screen turned to a man on an examination table and standing near him was a few Foot tech soldiers along with Technus! The man looks in fear as needle comes down from one of the machines and straps onto the man and started injecting a green substance in his arm.

"Thanks to Technus here, we were able to stable the substance with ectoplasm to mutate the subjects. The subject appears to be in some discomfort but this is a minor annoyance"

Danny and the Turtles all cringed at the sight of the man being mutated into a monster. Leo said, "That poor guy"

"So Technus was working for Vlad and the Shredder before we took him down" Danny said as he remembered when he and Mikey took down Technus and Dr Malignus with Silver Century.

"This is starting to get really weird" Mikey commented.

The next video log played and the scientist continued as the camera showed the images of the mutated humans in the containment units, "Day 345. The experiment appears to be a success although the subjects are exhibiting reduced intelligence"

The next video log then played showing the head scientist in slight fear as he stood before the creatures who were roaring and trying to get out of their containment units, "Day 575. The creatures are showing signs of instability. Becoming angry and vicious. Certain aspects of the experiment are going horribly wrong. Have we attempted too much in developing this unnatural life form? Perhaps there are some things man was never meant to tamper with"

"That's the one line in a monster movie you don't want to hear!" Mikey exclaimed feeling really scared now.

The next video log then played and the head scientist said as the image showed the creatures started exploring through the underground tunnels and this time wearing collars around their necks, "Through Technus's ingenious idea to use shock restraints that he developed, the creatures have been trained to retrieve evidence from their explorations"

The next video log played showing the head scientist and the other Foot tech soldiers celebrating. The head scientist said with a wide grin, "Day 699. The project is a success! Our creatures have found evidence of habitation underground which has been turned over to Master Shredder by Technus. I've been told he is quite pleased"

The next log played and this time showed the head scientist looking down in disappointment as he said, "Day 733. We have received a message from Technus that the settlement we found was not what Master Shredder was looking for. He has pronounced the project a failure. We've been ordered to shut down the operation and destroy the creatures"

The next log played and this time the creatures were attacking the lab and destroying it, Foot tech soldiers ran screaming as they were attacked. The head scientist shouted over the chaos, "The creatures have freed themselves! They are more intelligent than we ever dreamed! They….they have been manipulating us all along waiting for their moment to escape! NO! NO! KEEP AWAY! NOOOOOO!"

The video ended with the head scientist letting off one final scream before the camera cut out causing Danny, Leo, Raph, Mikey and Donnie to cringe. They all then heard a loud roar and turned to the door knowing that the creatures were on their way.

"So there's always one guy in the monster movie who freaks out because he can't take the pressure and I'm gonna do an impression of him right now!" Mikey exclaimed and then he screamed as he ran out of the lab, "GET ME OUTTA HERE!"

"Not that I ever agree with him but he's got a point" Raph said.

"Agreed. Fun's over. Let's go" Leo ordered and they all started heading out of the lab.

Donnie pulled out the crystals and held them together to light their way but just as they were leaving the rock wall in front of them suddenly melted and a blue and white creature came out, next came a red clawed monster and then came the rocky formed monster they had encountered the first time.

Danny changed back into his ghost form as they all got their weapons out ready to fight. Mikey then asked nervously, "Guys? This isn't the end of the movie is it?"

TO BE CONTINUED…