Summary:Chaos ensues on a family trip to the zoo. Hal becomes jealous of Lois's ex-boyfriend, Malcolm and Dewey get trapped in a tiger pen and Reese locks horns with a goat.
Summary:Malcolm suffers extreme humiliation in his first week as a high-school freshman. Francis surprises everyone by becoming the responsible one at work and Dewey revels in being a latchkey kid.
Summary:Lois finds herself repeatedly insulted at a family reunion, so the youngsters plot revenge and Hal is prompted to stand up to his father.
Summary:Hal hires a steamroller and becomes obsessed with crushing things, while Malcolm puts on an act to attract the attention of a non-intellectual girl.
Summary:Malcolm is grounded on his birthday once again when his vengeful battle with Reese gets out of hand. Hal sets out to buy a comic for his son, but has an unfortunate run-in with the shop assistants.
Summary:Malcolm dates a girl whose father dislikes him. Francis becomes chief mediator in a dispute between Otto and his cowboy neighbors, and Dewey discovers a boy who looks just like him.
Summary:Reese ventures out with his girlfriend, but makes the mistake of taking Craig along for company. Malcolm tries to be diplomatic - only to end up needing medical assistance.
Summary:Hal and the boys are destined for disappointment as they visit Francis and Piama at the ranch, where they assume plenty of mischief will be planned - but are saddened to discover their brother is now a responsible grown up.
Summary:Grandma Ida trips on garden debris outside
the Wilkersons' home and decides to sue her daughter and son-in-law for
compensation, while Lois receives momentous news from her doctor.
Summary:Exasperated with the unruly boys, a pregnant Lois dreams of what life would be like if she had daughters instead - but it turns out that the imaginary Mallory, Renee and Daisy would have been even more of a handful than her sons.
Summary:Reese goes to prison for the day, Francis is unnerved by a calamity on the ranch and Malcolm feels uncomfortable when Lois insists on giving him a lecture on sex.
Summary:Hal reaches the end of his tether over Malcolm's misbehavior and throws him out of the house - but Reese takes advantage of the situation to play a dirty trick of his own.
Summary:Jessica, the boys' sixteen year old babysitter, tricks them into doing chores around the house, even Malcolm is fooled. Hal gets a job as a salesman.
Summary:Hal catches up with an old school buddy, while Malcolm tries to liberate Dabney from his domineering mother, and Francis spends a night in the company of Otto.
Summary:Lois puts Reese in charge of the family garage sale and Hal rediscovers his anarchic side when he starts broadcasting on his pirate radio station under the name Kid Charlemagne.
Summary:Reese takes desperate steps to avoid attending a dance, Hal tries to get Dewey to admit he loves him, and Malcolm becomes infuriated by the eagerness of his academic octathlon team-mates.
Summary:Classic clips are shown, while Hal and Lois discuss how they are going to handle the new baby.
Summary:Reese throws a party at home when Hal and Lois take a romantic break, but Francis's delinquent friends spoil the fun when they gatecrash the shindig and take the boys hostage.
Summary:Malcolm meets a chess-playing layabout who could be an older version of himself, Lois can't understand why she is piling on weight and Francis objects to Piama posing nude in an art class - but eagerly signs up himself when he finds out how much the job pays.
Summary:The arrival of Lois's baby coincides with a less inspiring surprise in the form of a visit from grandma Ida.
Summary:Lois is going to have the baby, while Hal, who is desperate to get home, crashes the car.
Summary:Hal and Lois must find a new day care for their new child.
