After the kids blow up the store's steam cleaner, and Dewey confesses to stealing a $150 bottle of cognac, Lois's firing prompts household economizing to an extent that causes Malcolm mortifying embarrassment at school: Julie organizes a food-drive for his family. When Hal winds up in emergency with acute botulism as a result, Lois must re-think her position against apologizing to her odious boss, Mr. Pinter. Meanwhile, Francis thinks he's died and gone to heaven when he's assigned honor-guard duty at a Teenage Miss Alabama beauty pageant - until he discovers that all the girls think he's gay.
Malcolm is a regular high school kid trying to navigate his way through life despite the various obstacles thrown in his way a complete misunderstanding of girls, the constant burden of masterminding plans to get himself and his brothers into or out of trouble, and a miserable job at the Lucky Aide not to mention a severe case of teen angst.
Although Malcolm has a genius IQ, he can't seem to make sense of the opposite sex, much less his embarrassing family. Lois is the outspoken, opinionated mom, who still manages to rule the roost even though her boys are growing wise to her crafty ways. Hal, a dad who is just a bumbling, big kid at heart, often finds himself creating more chaos than his five boys combined.