sentences:  The remainder of the show focuses on Zim's time "infiltrating" the human race at school or at his home base, planning attempts at world domination, and the enslavement of humanity.Opposing Zim is his classmate Dib (Andy Berman), a paranoid young boy who is obsessed with the paranormal and supernatural and the only human (besides his sister) who sees through Zim's disguise.Dib is determined to expose Zim as an alien and thwart his plans for world domination, despite the hostility and mockery he receives from his oblivious peers for doing so.