Heart of Evil

Heart of Evil is the third episode of the fifth season of.

Synopsis
Donnie's grudge against Don Vizioso threatens the turtles' mission.

Major Characters

 * (Rob Paulsen)
 * Don Vizioso (Brian Bloom)
 * (Seth Green)
 * (Greg Cipes)
 * (Sean Astin)
 * The Hammer (Eric Bauza)