Invader ZIM (2001)

Zim aspires to be a formidable conqueror, but his clumsy attempts at invasion often lead to comic failures. To rid themselves of this troublesome recruit, his superiors dispatch him to Earth with makeshift gear. Surprisingly, Zim establishes a secret base and integrates into human society, masquerading as a schoolboy while hatching plans for Earth's destruction. The only one who sees through his disguise is Dib, Zim's determined rival, but he struggles to convince others of the looming extraterrestrial threat. Hilarity ensues as Zim navigates his dual life, oblivious to the chaos he creates.