S7E14
Night of the Dark Turtle
⚠ Spoiler alert This recap gives away what happens in this episode.
Episode Summary & Review
After a fight with Shredder causes Donatello to be struck by a laser beam, his personality changes to become a costumed superhero known as the Dark Turtle. His mission: Seek out & destroy Shredder. Meanwhile, a dinosaur-like alien race called Triceratons, invades Earth.