The windows in the building beneath them shatter.
Leonardo turns abruptly. "Let's move!"
A grappling hook digs into the building and Donatello swings across, followed by Michelangelo, then April.
"Karai?" Donatello asks.
"I'll explain later," Leonardo offers, swinging down into the building.
The others join him, including Karai.
It's a laboratory.
It's a full laboratory.
Scientists stop and stare at the group.
One man in a suit stands out. He raises a gun. "What are you?"
"Ninja turtles?" Michelangelo suggests weakly. "Who are you?" he asks conversationally.
The man aims the gun. "We are the Earth Protection Force," he declares. "We defend the earth against any threat, especially extra-terrestrials."
"Aliens?" Donatello inquires. "Like the Kraang?"
"Not just the Kraang," he cries. "All aliens."
"Isn't that slightly racist?" Michelangelo asks. "What if there are good aliens?"
"There are none!" he exclaims. "And now you defend them?"
Michelangelo shrugs. "I-yikes!" He ducks as the man opens fire on them.
The scientists fall back, hiding behind whatever is closest as the turtles, Spike, April, and Karai dodge the gunfire.
Leonardo moves forward, still without his swords. "We don't want to hurt you," he begins. "Who are you?"
"I told you, I'm an agent for the Earth Protection Force!" he cries.
He throws the gun away, bringing his hands up in a defensive stance.
Leonardo charges him, punching at his abdomen. The man twists out of the way and slams his palm into Leonardo's plastron, pushing him back.
Leonardo frowns.
Raphael brushes past him grimly. "Look." He points at a large machine in the center of the room. "That probably caused the explosion."
"It's a weapon," Donatello realizes. He rushes over. "I'll disable it!"
"Good." Leonardo glances around.
A scientist picks up a gun and begins firing as well. Leonardo sighs. Karai jumps, standing on Leonardo's shoulders before leaping off, sword coming down in a graceful arc towards the Agent.
Leonardo draws one of his own swords, slashing downwards. The man dodges, kicking expertly into his plastron and shoving Karai aside. She charges again.
April takes up a gun and fires back at the scientists, trying to miss Michelangelo and Spike, who are working together to take out the scientists as well. Spike drives her knee into the stomach of a scientist, elbowing him in the back and sending him to the ground. Michelangelo picks one up and throws him into two more.
Leonardo finally lands a hit on the Agent, who steps back and picks up a gun, aiming at Karai. Leonardo shoves into him, pushing the aim off and the blaster bolt lands in the wall.
Karai glances at him. "I'm not good at saying thank you."
Leonardo glances back. "That's fine."
There is another explosion from the center of the room. Donatello gives the thumbs up as the machine blows up behind him.
"No!" The agent shouts. He points. "This isn't over!"
He turns and jumps out of an open window.
