Lee paced back and forth on top of the apartment building as she was looking at the streets and seen no signs of her two sisters. But only she, Ella, April, and the turtles are here.

"Well, we have no choice but to get started since there's no sign of our sisters." Ella said impatiently.

"No, they'll be here." Lee quickly spoke.

"Seriously, why can't they just fall from the sky?" Mikey frowned in frustration.

Suddenly, Mikey jumped onto Donnie's arms as something crashed down next to him. Donnie gaped at the object and it was a sample of mutant liquid that April caught from her hands.

"Mikey, I was just a mutant sample." Donnie said in annoyance as he dropped his younger brother on the ground.

"Oh, I knew that." Mikey smiled sheepishly.

"Well, what do you know?" Raph smirked while crossing his arms. "Something had just fallen from the sky."

"Yeah…but who give us this sample?" April asked as she gazed at the mutant sample carefully.

Lee glanced up at the sky and saw Donna clinging on her latest tech creation: a flying advanced high-tech broom. She was hanging on tightly with all of her strength. Behind her, already beginning to grin and giggle as her arms were around Donna's waist tightly, was Ellie.

"Donna! Ellie!" Lee shrieked while the others had jumped to their feet and gazed up at the sky. "How did you two get here?"

"Well…" Donna said with a shrug. "Witches use brooms to fly. And I thought I'd construct one of my own." She landed next to Leo and April once her broom had broke out by her power. "The flying was tough, though!"

"Plus, I was completely knocked out after what happened with the female ninja and the Krang." Ellie added.

"Wait a minute! You mean Karai?" Leo asked.

"That's her." Donna nodded. "She said she was looking for the four zeniths and the rest of the Foot Ninjas took the mutant liquids away from the Krang."

"But what are the zeniths?" Ellie asked in confusion.

"Not that I've heard of." Donna shrugged.

"Not me." Ella shrugged too.

"Me either." Lee shrugged as well.

"Whatever the zeniths are, we must find Karai." Leo said.

"I've got her track." Ella spoke.

"How?" April asked.

"By sensing her heat presence." Ella responded. "And she's heading to some building not far from here."

"Let's go." Leo ordered.

As the gang arrived inside the empty building, they stepped their way through the doors into the room where all lights are turned on.

"What an entrance!" Raph said with a touch of sarcasm.

"Are you sure we are in the right place?" April asked.

"Hey." Ella said with a frown. "My heat wave did detected her here, didn't it?"

"As do I." A thin but sinister voice said. It was a voice Leo knew too well.

"Karai!" Leo gasped.

The gang glanced at Karai, who was grinning mischievously at them with the Foot Clan on her side to surround them.

"Welcome." Karai greeted. "If you guys are looking for the mutant capsules, just let those girls help me find the zeniths."

"Karai!" Lee called out. "What does they have do with all this?"

"Because their magic are connect to them somehow." Karai replied.

"Sorry, but that's not gonna happen." Ella snarled as she got into her battle stance.

"Okay then." Karai shrugged. "Get them, boys!"

Just before the gang and the Foot Ninjas were ready to attack, a giant Krang robot barged in the scene and fired a hail of missiles at April, but Donnie caught her just in time.

"This Krang must destroy the Foot Clan and capture April and the four zeniths!" The Krang robot spoke.

"Seriously, what are the zenith?" Mikey asked in frustration.

"I don't know." Leo replied. He turned to face Lee and her sisters. "Lee, you and the others battle the Krang robot while we faced Karai and the Foot Clan."

"Got it!" Lee nodded. She gave her sisters a nod. "Let's go!"

With that, the sisters ran toward the Krang robot. Ellie jumped into the air and thrust her hands out at the robot to sent out a magic-tinged beam of orange light at the robot's stomach. Ella balled up her own fists as she was ready to use her magic to shake the robot as she gathered an armful of fire and fired it at the robot. Lee motioned toward the thin air as a stream of water appeared out of nowhere and blasted it straight at the robot. And Donna waved her arms in the air to summon a bunch of plant vines and sent them to slash the robot. But it turned out their powers aren't too powerful enough for the Krang robot. But no matter how much power the sisters had given it, the robot was prove unbeatable.

'We're getting our butts handed to us! This robot is a tougher enemy to even defeat!" Donna cried. "Even I can't use my technology ability at it."

"Lee if you have a suggestion now would be the time to make it." Ellie pleaded.

"Listen, girls." Saldana spoke through her daughters' minds. "You must act fast. You four must recall your powers at once. Each of you must literally became our elements by tapping into the inner power. Each of your element bonds with the four seasons."

"Wait a minute! Can we really do that?" Ellie asked.

"Yeah, I don't find that even possible." Donna nodded.

"I mean we haven't learn that during our magic ninja training." Ella agreed.

"It's are only chance to defeat this and I say we go for it." Lee spoke in a firm tone.

Flying in V formation with Lee, the girls zoomed off towards the Krang robot. The turtles and the rest of the Foot Clan turned to face what they saw that shocked them.

"Winter!" Lee cried as she felt herself changing from a magic ninja girl into a free flowing cold icy liquid.

"Fall!" Ella screamed as her entire body was engulfed by a massive fireball with her limbs were thickened into wood.

"Spring!" Donna roared as her limbs transformed into high-tech and her naturally hair flew all over the place.

"Summer!" Ellie hollered as her entire body was forming into a living light humanoid with music rings swirling around her.

"Wait a minute!" Karai gasped. "They 'have' the zeniths?"

"Oh they 'are' the zeniths!" Leo exclaimed.

"They have tapped into their inner power and have literally become their elements." Saldana explained through the turtles' mind.

The turtles, April, and the rest of the Foot Ninja all looked back at the fearless battle.

"You will not destroy the Krang!" The Krang robot roared as it watched the sisters circled around and ready to move in for the kill.

Wielding its arm, the robot spat a blasts of fire at Ella as it was hoping to destroy her. But the fire blast had strengthen Ella which causes her to blaze brighter and brighter. With a wave of her hand, Ella sent the river of flames back at the robot as it screamed in agony. Before the robot could attack again, it was stuck in Donna's hair strangling it and darting its body ripping off its body parts. Lee flowed through the air and formed a bubble around the Krang robot as the water started going through its body. The Krang robot struggled to free itself until it can't attack anymore. Ellie sprang up in front of the robot and started to blast a powerful light energy beam again and again only stopping when the robot was on the ground in pain. The sisters shot one powerful combining blast at the robot, causing it to explode in the process.

With that, the sisters unleashed all of their powers to defeat Karai and the Foot Ninjas and then teleported their friends away from the empty building.

Back at the sewer, the turtles and April watched Saldana using her powers to restore her daughters to normal.

"Huh…what happened?" Lee asked as she begins to feel woozy.

"How did we even get here?" Ellie asked in confusion.

"Where's the Krang robot and the Foot Ninjas?" Donna asked as she looked around.

"Did we stop them?" Ella asked in worry.

"Calm down, my dear." Saldana replied. "All of you have achieved the highest level of your magical abilities. But I'm afraid the battle is not over yet."

"Why?" Lee asked.

"Because the Shredder will find a way to defeat us once and for all." Splinter explained. "We must act as a team."

"I'm in." Lee spoke.

"Me two." Ella agreed.

"Me three." Donna nodded.

"Count me in." Ellie grinned.

"That's included us too." Leo said as he and his brothers walked next to the sisters. "We are a team."

"And me as well." April grinned.

With that, Lee and her sisters gave them smiles but were determined to face the challenge ahead of them.