Teenage Mutant Ninja Turtles (2003) (2003)

S6E20 Turtle X-Tinction

Darius Dunn harnesses the power of Turtle X to seek vengeance against his nephew and the Turtles. As he unleashes this formidable force, the Turtles must band together to confront the threat posed by Darius and his relentless pursuit of retribution. With each encounter, the stakes rise, forcing the heroes to rely on their teamwork and courage to protect their family and stop Darius's plans before it’s too late.