You will Watch Invader Zim Episode 12 online for free episodes with HQ / high quality. Stream cartoons Invader Zim Episode 12 Planet Jackers Various earthquakes begin on Earth and Zim attempts to find out why. He discovers that the planet is being stolen by two thieves who intend on using the Earth as kindling for their dying sun. After failing to persuade them to leave the planet for his conquest, Zim goes about stealing the planet back and is eventually successful. The citizens of Earth have no idea what was happening (although the “sky” inside of the capturing shell appears to pulse) and the Planet Jackers never realize that they lost the Earth. This is the First episode that Zim saved the human race, though he claims that he is the one who will rule the world.