The Power Inside Her

"The Power Inside Her" is the 22nd episode of season 4 and the 100th of the overall. It aired on November 20th 2016.

Official Description
Donatello becomes concerned and decides to test April, only to discover that her psychic abilities are rapidly growing in power.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * April
 * Casey
 * Splinter
 * Tiger Claw
 * Rahzar
 * Fishface
 * Hun
 * Za Naron
 * The Purple Dragons
 * Foot Elite Bots

Trivia

 * First and only appearance of Za Naron.
 * This is the 2nd time Donnie "dies", the first time was in Dream Beavers.
 * April's transformation is similar from Dragon Ball Z when several characters turned into Super Saiyan, a legendary warrior with an increasingly long mane of blond hair who gains an order of magnitude of power.
 * Even April's hair has a similar style to Super Saiyan.
 * April's "There Is no April, only Za-Naron!" quote is similar to how the original Ghostbusters'character Dana Barrett was possessed by Zuul.