Invader Zim is a Nickelodeon show and movie about an extraterrestrial named Zim from the planet Irk. His mission to conquer Earth and enslave the human race along with his malfunctioning robot servant GIR. This is a 100% officially licensed Nickelodeon T-shirt, Guaranteed!! This shirt features the Nickelodeon high-quality graphic design of Invader Zim. It's made of 100% cotton fabric. This tee is also tagless for added comfort.