Darkest Plight is the twenty first episode of Season 4 of the Teenage Mutant Ninja Turtles (2012 TV Series). This episode was directed by TBA and written by TBA. This episode will be aired on November 13th, 2016.
- Is revealed that The Rat King died in the bottom of The Undercity after falling into the abyss in Of Rats and Men.
- The episode starts right after the event of The Super Shredder.
- Splinter meeting the spirit of The Rat King in the abyss of The Undercity refers to Of Rats and Men after The Rat King fell into the abyss.
- Super Shredder gets his heart punched by Karai, which weakens him in combat.
- After the unstable side effects of the Super Mutagen gradually affect Super Shredder, Baxter Fly is forced to stabilize the Super Mutagen to stabilize his mutation.