When Hal and Lois realize how little time they spend together, Hal turns the garage into a private tiki lounge where he and Lois can retreat. Things go smoothly until they feud over philosophical beliefs. Meanwhile, Mr. Herkabe cons Malcolm into joining the Booster Club, where he learns a lesson about taking one for the team.
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.