Owari

"Owari" is the 26th episode of season 4 and the 104th of the overall. It aired on February 26th 2017.

Official Description
The Turtles realise they must stop Shredder, and end this conflict once and for all.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * April
 * Casey
 * Splinter (Spirit)
 * Karai
 * Shinigami
 * Kirby
 * Letherhead
 * Slash
 * Dr Rockwell
 * Pigeon Pete
 * Ice Cream Kitty
 * Chompy
 * Dr Cluckingsworth
 * Super Shredder
 * Tiger Claw
 * Fishface
 * Baxter Stockman
 * Rocksteady
 * Bebop
 * Foot Bots
 * Elite Foot Bots
 * Tigers

Trivia

 * This episode first aired in South Korea on December 31st.
 * It also aired in Spain on February 22nd and aired in the UK on February 25th
 * Last appearance of Super Shredder.
 * In the climax of the final battle, Leonardo slices off Super Shredder's head, finally killing him, which is a reference to the Mirage comic issue #21, where Leo sliced Shredder's head off.
 * Splinter is spirit in this episode.
 * Baxter Stockman returns to human in this episode
 * Tiger Claw has a new metal hand that can change weapons.
 * "Owari" translates as Japanese for "The End"