Teenage Mutant Ninja Turtles (1987): Season 8, Episode 7

8 - 7: Cyber-Turtles

Krang & Shredder steal the Astro-Viewer, a powerful telescope, before disabling a starfighter passing over Earth. Once aboard the starfighter, Shredder steals the Fire Star, a crystalline fragment with the power of 1000 suns which renders its possessor invincible.