Zach, the Turtles' young friend, and honorary fifth Turtle, is infatuated with comic books, especially "The Alien Invaders"... but the boy has "cried wolf" once too often as he seems to see aliens everywhere. Zach "retires" his Turtle costume when his parents enroll him in the Ten-Hut Military Academy where they hope he will learn some discipline and live in the real world. It is not until the Robotic Cockroach starts attacking some construction workers downtown that Zach's alien invasion story is accepted as fact and not fiction.