Back at the lair, Mikey was skateboarding on the halfpipe. Casey was playing one of the arcade games. Merida was skating around the lair on her skates. Hiro, Baymax, and Violet were working on a few upgrades on Baymax's armor. Lilo and Stitch were studying the legend on a few books. Leo, Anna, Donnie, Punzie, and April were standing over the table as they were trying to figure out the Mayan connection between the monsters and Mr. Winters.
"So, what are we looking for?" April asked.
"Well, according to these star charts, the portal is set to open directly over Winters Tower in the next 24 hours." Donnie explained.
"So the legend is right. Three thousand years." April said.
"And when the portal opens, we'll lose the city to monsters within hours." Punzie said, showing the map of the possible outcome on the visual screen. "Within days, the country. And within weeks, the world."
Mikey used his right hand to balance himself in a handstand on the deck of the halfpipe.
"Oh, so it's like Halley's comet, only monsters come out?" Mikey said.
"Yes. I guess so." Donnie responded with a slightly surprised face.
"I'm smart." Mikey said with a chuckle.
Mikey went back down the halfpipe on his skateboard only for him to crash painfully.
"I'm okay." Mikey groaned in pain.
"I'm coming, Mikey." Merida said as she quickly skated over to her mutant boyfriend.
"Why do we need Raph, anyway?" Leo asked angrily. He got up from the chair and walked away from the table. "It's his temper that always jeopardizes all our missions."
"Okay, Leo. Whatever you say. Nobody was talking about him." Donnie mumbled as he looked at the shrugging April and Punzie.
Anna stared at Leo with a worry face and got up to follow him. Leo started to walk up the stairs until Splinter stopped him for a moment just when Anna stood few inches behind to the mutant rat.
"Leonardo, this team you are so eager to lead is incomplete. You know what you must do." Splinter said.
"Yes, Sensei." Leo said with a sigh.
Leo exited the lair to find Raph, leaving Anna walk up to Splinter.
"I know, you're trying to solve your sister's problem, but this is something you two need to fix yourselves." Splinter said to Anna.
"Splinter, I know Elsa likes to take things into her hands." Anna said. "But I just know that something's up with her. She kept saying she's fine, but I know something's wrong when I noticed her emotions. It's like she's not herself at times."
"I know your concern for your sister, Ms. Arendelle." Splinter explained, placing his comforting hand over Anna's shoulder. "You can help her, but this is something she has to handle on her own. She can battle her inner demons. All she needs is time."
Anna nodded her head and exited the lair to find Elsa.
At Winter's Corp, three generals were trapping the eleventh monster in a cylinder cage until the door opened behind them.
"Generals, I think our brother has plans to betray us." Aguila said dangerously. "The 13th monster must not be found."
Somewhere in the city, a small fast food diner was opened late.
"Why don't we take one more call about these monster sightings?" A news radio broadcasted. "Suffern, New Jersey, you're on."
"Monster sightings." The male employee scoffed as he was serving coffee to his customer, who was reading a newspaper in his hands.
Then suddenly, the employee heard something coming from the kitchen and went inside to check it out. He headed to the freezer and saw something monstrous right in front of his eyes.
"A monster!" The employee screamed.
Meanwhile, Elsa was standing on the building rooftop edge in her Blue Spark attire until the police radio she had went on.
"Attention, all on-duty officers: Report of a disturbance on 32nd. No units available." A policeman said.
"About time." Elsa smirked. "Hope my knight in shining armor shows up."
Elsa leapt away across rooftops to head to her destination.
"I need a fast route." Elsa said to Sam.
"Take the right turn in saint Eric street. Then, the destination is on your right." Sam said.
Elsa followed the directions and arrived.
Back in the diner, the employee was freaking out in a complete fear as he frantically kept pushing the button to alert the police.
"Where are the cops? How come the cops haven't shown up?" The guy said to himself as he pressed the button repeatedly. "Just remember what my analyst said, just go to my happy place. Everything's gonna be fine. Happy place. I'm feeling good. I'm thin."
Elsa strolled casually through the door and walked towards the kitchen door while cracking her knuckles in preparation.
"Don't get up. I'll serve myself."
Elsa turned around to see Raph coming inside the diner in his Nightwatcher attire.
"Sup, princess." Raph greeted. "What've we got?"
"Looks like we're about to find out." Elsa replied, pointing her thumb to the kitchen door.
Raph and Elsa opened the kitchen door as they walked into the kitchen together and saw a bunch of food lying around the floor until they spotted more food flying in the air from the freezer. They moved forward to look at the small monster chewing on raw meat. The monster was a short, yet dangerous red demon-like creature with short horns, sharp claws, teeth and fangs, a long tongue, and a scorpion-like tail.
"Look at you. Ain't you cute? You want a butt-kicking, little fella?" Raph said in a baby tone as he walked up to the creature.
"Uh, Raph, I don't think that's a good idea." Elsa warned as she kept her distance from the creature.
"Yes, you do. You do." Raph continued as he ignored his girlfriend and held his hand out to the creature. "Come on, I'm gonna drop-kick you to hurty town. Come on, little guy."
The small monster growled at Raph and then started biting the mutant turtle's finger that caused him to lurch backward from the freezer. Raph screamed in pain as he was trying to punch the small monster off his finger.
"Get off of me, you little monster!" Raph yelled.
"Told you so." Elsa said with a smile as she crossed her arms over her chest.
Raph was struggling to get the monster off, but the monster crawled on Raph's head and wrapped its tail around his helmet as it began banging the mutant turtle to the fridge door.
"You're scratching the helmet!" Raph shouted.
Raph then fell on his back to the floor while holding the monster in the air with his hands.
"Elsa!" Raph yelled.
"I'm on it!" Elsa shouted.
Elsa charged forward and delivered a brutal roundhouse kick that sent the monster flying out of the door.
"Okay, that was different." Raph said.
"Ya think?" Elsa said as she placed her hands on her hips.
Suddenly, the monster jumped back into the kitchen and landed on Elsa's face this time. It pounded his fist on the helmet and then motioned her around like a rag doll that caused Elsa to fall on her back onto the kitchen counter.
"Hey, get off of me!" Elsa yelled as she was trying to get the monster off her face.
The monster then tripped the vigilantes with its tail, causing Raph and Elsa to fall on their backs to the ground. The monster jumped onto Elsa's chest and started shaking her back and forth.
"Get off of my girl!" Raph hollered.
Raph delivered a strong punch to send the monster landing to the fridge, causing it to fall on the creature straight to the floor. But the monster popped back up through the fridge and started to run towards the vigilantes, who were armed themselves with pans in their hands.
"Come on, show us what you get!" Raph challenged.
The monster crawled all over Raph while the mutant turtle was trying to hit it with the pans. But Elsa managed to hit the monster's face hard with a pan, causing the creature to go daze for a second. That gave Raph the opportunity to smack the monster with the pan in his hand. The monster slid back on the back on the floor and began growling at Raph and Elsa.
"How about a snack, little fella?" Raph asked as he took three small black smoke pellets in his hand.
The monster started to charge forward at Raph and Elsa with a screeching shriek.
"Catch." Raph yelled as he threw the smoke pellets at the monster.
The smoke pellets flew straight into the monster's mouth and the creature swallowed them whole. But unfortunately, the smoke started billowing out of its mouth that made the monster run away out of the diner super fast with loud screaming.
Elsa and Raph panted as they slowly bumped their fists at each other.
"Thanks for helping me." Raph said.
"Anytime, tough guy." Elsa grinned, taking off her helmet.
Raph took off his helmet and kissed her right on the lips and Elsa gladly kissed back with a smile, before putting her helmet back on. Raph put his helmet back on and put his arm around Elsa as they walked into the main area of the diner.
"Keep on running, you filthy little hermit crab!" Raph yelled. "That spicy meatball's on the house!"
"Hey guys, please don't hurt me." The diner employee begged as he began backing away behind the table.
"You got to be kidding me." Elsa said in disbelief.
"What? We're not robbing you, we're helping you." Raph said.
"Okay, whatever you say, sir. Please, I got kids in college. Community college." The diner employee said.
Elsa saw the cash register on the ground and picked it up to give it to Raph.
"Here you go, pal. Make sure this is safe." Raph said, handing the cash register to the diner employee.
"Take everything. I'm not even looking. Go." The diner employee responded.
"Why is it everyone's got such a hard time believing we are the good guys?" Raph said frustratingly.
"Yeah, I mean we just saved his life!" Elsa agreed as she was placing her hand on her hip.
Then suddenly, a kunai came through the window and stabbed the cash register. Raph and Elsa both looked at the small knife as they saw Leo and Anna standing together on the building rooftop through the broken window.
"This night just keeps getting better and better." Raph sighed sarcastically.
"Yeah, no kidding." Elsa muttered.
Leo and Anna watched Raph and Elsa running out of the diner to head into the alleyway. They sprinted to another building rooftop to catch up with the vigilantes. Anna then threw a flurry of eight kunais in front of Raph and Elsa, causing them to stop and look up at their older siblings.
"Listen, Elsa, we have to find a way to deal with this problem ourselves, but we have to go separate ways to do so." Raph said as he looked back at Elsa.
"Okay. Be careful." Elsa said with a nod.
Raph nodded his head and began running out of the alleyway into the streets as Elsa sprang herself onto the building rooftop and began moving across each one.
"Looks like we are going to play a cat and mouse game." Anna said with a grin.
"Let's keep up with them, shall we?" Leo said with a smile.
Leo jumped high in the air and landed on the ground to chase after Nightwatcher while Anna sprang high in the air and leapt across the rooftops to chase after Blue Spark.