Teenage Mutant Ninja Turtles Season 4 Episode 21 - Darkest Plight Episode Title:Darkest Plight.Episode Description:The Turtles (along with April, Casey, and Karai) desperately hunt for Splinter, as Super Shredder is seen to have survived and has Bebop and Rocksteady make sure that Splinter is truly destroyed. Donnie, Mikey, Raph and Casey go to search the Undercity for Splinter with their grappling hooks; unaware that Bebop and Rocksteady are not far. Meanwhile Leo, Karai and April lure Tiger Claw and Super Shredder to the surface. Leo is separated from the two girls and left to battle Super Shredder all on his own. Fortunately, April uses her extraordinarily powerful telekinetic abilities against Super Shredder and succeeds in saving Karai from being crushed by a truck that contains sulfuric acid (thanks to the mystical Sol Star fragment further amplifying her psionic abilities), her eyes glow a bright blue and she smiles malevolently as she hurls it right back at Super Shredder.