Malcolm and some unpopular kids plan an anti-prom which they call morp. Reese is paid to go to prom with a girl, and at home, Dewey is mad when he discovers there aren't any baby pictures of him, so he decides to teach Hal and Lois a lesson.
Good episode. Reese was pretty funny, the guy at the morp taking off all his clothes was funny, and so was the ending (what, Dewey, did you expect Hal and Lois wouldn't punish you, after all you made them go through?). Pretty good penultimate episode of the show, I give it a B or so as a grade.