After nearly destroying the Irken Empire’s home planet, Zim begs for another chance to prove his worth. Hoping to get rid of the little pest, the Almighty Tallest give him a “Secret Mission,” telling him go to the planet called Earth and conquer it. They give him a defective GIR robot, hoping that he will die on his journey. He arrives on Earth and starts his quest of world domination. Unfortunately, due to a mixture of his own incompetence, a kid obsessed by the paranormal and the defective GIR, taking over the world isn’t going to be that easy.