Requiem

Requiem is the twenty-fifth episode of the fourth season an the one hundred third overall. It is the first part of the Season 4 finale. It will air on February 19, 2017.

Plot
Stockman gives Super Shredder the final dose of mutagen to stabilize him. He requests the Elite Footbots put on level twelve, which he manages to all defeat.

In the Turtles' lair, they watch the final episode of Chris Bradford's 2 Ruff Krew. Splinter gives his words of wisdom to Leonardo. The other turtles, April, and Casey enter the dojo saying they are meeting up with Karai and Shinigami with the Mighty Mutanimals. They invite Splinter to come with them, and he agrees because he needs to spend more time outside the dojo.

At the Mutanimals' hideout, Karai, Shinigami, and the Mutanimals are enjoying their time until Super Shredder breaks through the doors. After fighting with all the Mutanimals, he throws Leatherhead at a laboratory table, which sets a fire. He begins to fight with Karai, then says he will kill her like he killed her mother. He throws her off the second level of the warehouse to the floor, followed by debris falling on her body. Just after Shredder leaves, the Turtles, Splinter, April, and Casey enter, noticing the damage that was done to the warehouse. Splinter anxiously searches for Karai, then finally finds her unconscious. She wakes up groaning. They call the ambulance and Splinter divides the team before they leave - Leonardo with Michelangelo and Donatello; and Splinter with Raphael, April, and Casey. Shinigami chooses to stay with Karai. Leonardo thinks it is a bad idea because they should all stick together as a team.

Characters

 * Leonardo
 * Raphael
 * Michelangelo
 * Donatello
 * Super Shredder
 * Splinter
 * April O'Neil
 * Casey Jones
 * Karai
 * Shinigami
 * Slash
 * Leatherhead
 * Mondo Gecko
 * Rockwell
 * Fishface
 * Rahzar
 * Bebop
 * Rocksteady

Trivia

 * This is the first part of the two-episode season four finale.

Quotes
Super Shredder: [grabs Splinter] And now...Hamato Yoshi...dies! [throws him off the Wolf Hotel rooftop to his death] --- April: [blasts Super Shredder with an extremely powerful psionic wave] Super Shredder: [falls into garbage truck from rooftop] Casey: [crushes him in the truck] Oops.