Malcolm is miserable because his brain won't stop working. While other teenagers are enjoying life, he is busy over-analyzing everything from the laws of physics to the social dynamics of high school. When he develops a crush on a girl named , he realizes his intelligence is his biggest obstacle—she is, quite frankly, a moron, and his "brainy blather" bores her to tears. Lessons in "Stupid"
While Malcolm is busy playing dumb, the rest of the family is engaged in their own brand of chaos:
wins $1,000 from a lottery ticket. Instead of being responsible, he follows his childhood dream and rents a steamroller . He begins a path of destruction, crushing everything in sight until Dewey has to step in to talk some sense into him before he ends up in jail.
