Reese, as soon as he parachutes into Afghanistan, panics and deserts the Army. He hides as a local Muslim woman but accidentally gets married. Winding up alone and dehydrated in the desert, he hallucinates the mascot "Mr. Waffles" giving him a motivational speech, then uses various means of transportation to wander the Middle East. Lois, having recovered from her mental breakdown, receives Reese's file from Sergeant Hendrix after impressing him with her methods of punishing children, then travel
After learning that Dewey will be leaving their class, the Buseys run away and hide in the trees near his house, forcing Dewey to look after their needs. The unemployed Hal becomes the leader of a group of dimwitted bodybuilders by teaching them basic life skills, and they do favors for him in return. Dewey discovers that Lois treats him kindly as long as he stays out of trouble. Malcolm and Reese suspect that the special treatment means Dewey is informing on them, so they try to entrap him, but
When Hal and the garbageman get into a trash-dumping war (which benefits Dewey more than anyone else), Hal enlists Reese's help. Meanwhile, Lois gets her job back at Lucky Aide (off probation), and fights against Malcolm in order to take down an offensive billboard of a smiling black janitor (whose nametag reads "Slappy") holding a mop and a 6-pack of malt liquor. Soon it's an all-out war between mom and son - until Lois encounters a fellow employee who is more racist than the billboard.
Jessica returns to wreak havoc on Malcolm's family. This time, she tricks Malcolm and Reese into thinking both of them are closeted homosexuals. Meanwhile, Hal competes with his neighbors over lawn decorations, and Dewey does a report on Hal being his hero.
Stevie's mother, Kitty (Merrin Dungey) returns after months of debauchery, and Lois calls her out on abandoning her son and husband. Meanwhile, Malcolm helps Stevie record his acceptance speech and edit it to make it sound like Stevie is speaking normally, and Reese gets an all-over sunburn so he can peel off every inch of his skin.
Hal and Lois are strapped for cash as Christmas approaches. Things get even worse when the now unemployed and broke Francis and Piama decide to come home for the holiday, and Lois gets into a car-crashing war with a woman. As a result, they decide that the Christmas gifts will have to be homemade this year. When the family makes much better gifts than Hal, he promises them that he's going to take them somewhere wonderful and drives around aimlessly looking for somewhere that's as amazing as he c
Hal gets so stressed out over finding a 20th anniversary present for Lois that he starts losing sleep, which prompts Reese to try to brainwash his semiconscious father. A school bully nominates two of Dewey's classmates for student body president, and Dewey nominates the bully, sparking a bizarre three-way election battle. Malcolm takes up the electric guitar despite Lois' warnings that he will fail at it.
Lois begins to think she is losing her touch in discipling Jamie — until she remembers that she had the same problem with Francis when he was a child. Meanwhile, Malcolm, Dewey, and Reese try to find something to do with a discarded diving board.
When Malcolm spots a decrepit 1968 Plymouth Barracuda V8 in his neighborhood on sale, he instantly falls in love with it and purchases the car. He becomes so obsessed with restoring it that he ignores his friends, then becomes trapped within the car and nearly succumbs to carbon monoxide poisoning. Hal stumbles upon his hidden talent for hairstyling and winds up operating a small-scale salon within his house. Craig tells Lois he is taking time off to tutor his boss Fred's wife in golf, but Lois
When Lois catches the boys vandalizing a billboard for a strip club, Malcolm spins the vandalism into a women's rights protest, which sparks a colossal media circus. After Hal grants a TV interview, a woman from his past turns up at the faux protest to demand that he repay a loan from years earlier. Reese falls asleep and dreams of the stripper in giant form telling him she is not real; inspired, he wakes up to give an impassioned speech about the objectification of women, while Lois tries to fi
When Lois buys a brand-new king-sized bed, Hal thinks that her motive is to put more distance between them and refuses to sleep in it. Moved to tears by an opera he sees on television, Dewey is inspired to write his own operatic masterpiece based on his parents' quarrels, "The Marriage Bed", which is turned into a school production. Malcolm and Reese build their own street luge board and Malcolm gets into a feud with a mystery rider who keeps forcing him off the road. When he makes a bet against
The indecisive Hal is named executor of his neighbour's living will and must decide whether to keep him on life support or pull the plug. The stress of making this life-or-death decision induces a psychosomatic paralysis of his upper body. However, Lois snaps Hal out of it when she reminds him that he made a good decision once by marrying her instead of Susan, leading Hal to uncover a third option. Craig asks the boys to teach him how to fight dirty since a bully from his childhood is coming bac
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, eventually stressing out in the lounge. Herkabe cons Malcolm into joining the Booster Club, where he learns a lesson about taking one for the team, which helps him to reconcile Lois and Hal. Worried over having two geniuses in the family teaming up against him and believing that Jamie has the s
During Grandma Ida's unwelcome visit with the family, she loses her leg while saving Dewey from a moving truck. Consumed with guilt, Dewey is determined to find Ida's leg and give it the proper burial. Francis begrudgingly becomes Ida's caretaker at Lois' admonition. He soon learns that not only do they both despise Lois, but she was responsible for leaving him at his grandmother's house. Malcolm and Reese get a new idea for a prank that forces them to stay awake for days on end to avoid the emb
After Hal forbids Dewey from inviting his peculiar classmate Chad over for a sleepover, Dewey goes over Hal's head and asks Lois instead. Meanwhile, Malcolm and Reese find out that they are not as popular as they once thought, and plot "revenge" on their classmates, Lois searches for the warranty papers on her 10-year-old blender that she wishes to return for minor infractions, and Hal tries to keep Lois (and anyone else in the family) from finding a nude photo of Lois he took when they tried to
When Francis and Piama choose to celebrate Francis' 21st birthday at the house, Hal is reminded of a promise he made to a young Francis after missing his son's play, involving a motorcycle trip. Hal and Francis sneak off and have a great time until it emerges that Francis has been attending Alcoholics Anonymous meetings, upsetting Hal, who is reminded of just how much he's missed out on. Meanwhile, Lois and Piama finally start bonding over their anger towards their husbands, especially since Hal
Malcolm discovers a homeless man named Norm (Dan Butler) living in the Lucky Aide. He agrees to keep Norm's secret as long as he provides Malcolm with tidbits on his new crush Wendy, a fellow Lucky Aide employee, until Lois finds out. Malcolm reveals too much information to the girl, making her think that he is stalking her. When Reese takes a job as an exterminator, he quickly learns that, to drum up business, he must infest the neighbors' lawns with caterpillars. He has a change of heart and b
Lois goes over to visit Ida, thinking she may have dementia due to an odd phone call, but gets unpleasantly surprised by the "St. Grotus Day festival", where Ida and her elderly friends make Lois miserable. Meanwhile, Dewey helps Malcolm with his music appreciation class, and Hal and Reese bond over horror movies.
Reese begins hanging out with a pack of dogs who think of him as their new alpha leader. Meanwhile, Dewey gets in trouble with Lois after she finds out that he is seeing another mom, and attempts to get her back with a huge tattoo on his chest, and Hal accidentally becomes a motivational speaker for his co-workers, but drops it when he motivates a man, Gerry (Bob Glouberman) into taking over his job.
After Lois and Hal are reminded of the tight budget they must uphold, Hal discovers one of the boys has been dialing a 1-900 number. His attempt to explain the error to the hotline's billing department turns awry when he forgets to hang up the phone one evening and finds out about it in the morning, incurring a whopping $800 charge . Meanwhile, Reese takes a job at a research clinic that pays him to take experimental pills and regrets it when he steals a police horse, Malcolm takes on a humiliat
When Hal decides to attend his first annual Neighborhood Association meeting with Malcolm, he is strongly encouraged to take on the role of President. Malcolm sees a perfect opportunity to add some excitement to the community, but is soon appalled when he learns of Hal's authoritarian agenda. Meanwhile, Francis takes on a new job as a camp activities coordinator and turns to Dewey for his input on some creative new games, only for Dewey to discover the games are actually for kids with intellectu
The boys enter Lois in the Mrs. Tri-County Pageant as a joke. When they overhear the other contestants remarking that Lois doesn't have a chance of winning, they plot to help their mother take the crown. Meanwhile, Malcolm is blackmailed into delivering love notes to a contestant for Herkabe and Reese discovers that, according to the Mrs. Tri-County pageant handbook, he has the good looks of a middle-aged woman, only to be heartbroken that he can't enter the competition because he's a teenage bo