The Ninja Turtles patrolled the rooftops of New York, watching for any signs of trouble. They noticed an alley where a couple of criminals, a man and a woman, were carrying a large bag full of stolen money. They watched them from the shadows, watching as they both climbed the fire escape, until they reached a nearby rooftop.

Silent and determined, they took out their weapons: Leonardo unsheathed his katanas, Donatello held his Bō firmly, Raphael brandished his sais and Michelangelo spun his nunchakus.

"Did you think you could escape that easily, huh?" Raphael said with a defiant smile.

"It's time to return what doesn't belong to you," Leonardo added, with his firm and determined leader stance.

The man took a step back, scared to see the four huge mutant turtles in front of him. But the woman looked at them with disdain, no trace of fear in her eyes, as if they were mere nuisances in her way.

She pulled out a gun and shot her partner. The bullet hit him in the head, and the man fell from the roof, disappearing into the darkness with a heart-wrenching scream. Blood splattered the edge of the roof as his partner's body was lost in the abyss.

The four brothers were horrified by the woman's coldness, but she gave them no time to react. With a murderous look, she turned the gun towards them.

"You have no idea who you're messing with!" Raphael exclaimed, resisting fear and challenging her.

Without hesitation, the woman fired, and the bullet hit Raphael's biceps directly. He gritted his teeth in pain, but did not let out a scream, maintaining his defiant stance. The woman came closer, inserting her finger into the open wound where the bullet was, increasing Raphael's pain.

"Let him go!" Leonardo exclaimed, raising his katanas, with a mixture of anger and horror in his eyes.