George Beard ve Harold Hutchins isimli iki afacan çocuk, okul müdürleri Bay Krupp'ı hipnotize eder ve müdürü bir çizgi roman karakteri olan iyi kalpli ve lastik donlu Kaptan Düşükdon’a dönüştürürler.
Captain Underpants: The First Epic Movie is a 2017 American animated superhero comedy film based on the children's novel series Captain Underpants by Dav Pilkey, produced by DreamWorks Animation. The film is directed by David Soren from a screenplay by Nicholas Stoller, and stars the voices of Kevin Hart, Ed Helms, Thomas Middleditch, and Nick Kroll. In the film, two fourth-grade pranksters, named George and Harold, hypnotize their humorless principal, named Mr. Krupp, into thinking he is a superhero named Captain Underpants. The film loosely adapts the first, second, fourth, and the eleventh Captain Underpants books.