Malcolm finds his life as the middle brother in an eccentric family made even more difficult by his being placed in a class for gifted students at school where he reluctantly befriends another boy wit…

Lois must take drastic steps to discover which of her sons ruined the special dress she bought for an anniversary dinner with Hal.

Lois and Hal leave the boys alone for the weekend with Francis. the boys assume that if all goes well, Francis may not have to go back to military school.

Parallel stories pit Malcolm against a bullying, obnoxious new kid and Francis vies with his intimidating, military-school commandant, who's presenting sex-education lectures. Meanwhile, Hal takes hea…

Malcolm's cushy babysitting job provides relief from the trailer the family's using while their house is being fumigated, until Malcolm learns that the trust placed in him in his new position is stric…

Malcolm sleeps over at Stevie's house and, appalled at his over-protected lifestyle, persuades him to sneak out to a strange, late-night escapade. Francis deals with hazing at military school. Reese t…

Francis goes AWOL from military school to link up with his girlfriend, a ditsy doozy who's made him gaga.

The whole family attends a Krelboyne family picnic, and Malcolm dreads his performance in the event's Academic Circus will make him look like a freak. Disasters abound as stage acts bomb, families feu…

Lois's firing prompts household economizing. Meanwhile, Francis delights in his honor-guard duty—at a teenage beauty pageant.

While Hal secretly takes the boys to the stock car races, Lois desperately searches for her missing paycheck. Francis at military school is keeping a boa constrictor as a pet.

A relative's funeral conflicts with Malcolm's plans for his very first date, so he tries to figure out a way to skip the bereavement ceremony.

A spiffy cheerleader attracts slovenly Reese, who cleans up his act—best as he can—to woo her. He even joins her rah-rah squad. Dewey tries to convince Lois and Hal to buy him a new toy. Francis has a…

Roller-skating lessons from Hal bug Malcolm, who rebels against dad's discipline while mom agonizes in bed from a backache she blames on Reese. Francis avoids his squad's survival weekend.

Malcolm and his Krelboyne classmates enlist the help of Hal for a school project, which involves a robot, and an enormous swarm of bees. Lois visits Francis at his school after he becomes injured and …

The boys stay home from school when their mother thinks it's Sunday instead of Monday. Malcolm thinks of a plan to get Francis out of trouble once again. Hal gets sucked in by a Porsche dealership.

When the family goes to a water park for a day, Dewey is left home with an elderly, stern babysitter. Francis is hustled at pocket billiards by his military-school commandant.

Hal, Loi, Malcolm and Reese are trapped in a horrendous traffic jam. Francis enters himself in a bet that recalls the egg-eating wager in "Cool Hand Luke." Malcolm becomes smitten over a girl he meets…

Francis visits the week after Halloween and helps his brothers in a trick that involves a giant slingshot with icky ammo. Hal tries to catch a mysterious hot-rodder.

Crummy gifts rile birthday gal Lois, who suddenly splits from home, leaving confusion, anxiety and desperation in her wake.

Shenanigans abound at the fancy spot where the family's dining with the Kenarbans, and at Francis' school, where rowdy teenage girls are partying.

A family weekend vacation to a casino turns into an ordeal in the desert for Hal, Reese and Malcolm, who wander onto an artillery range. Francis sneaks home, but has no one to play with.

Hal and Lois heads off to a convention while the boys stays home for the babysitter. Malcolm, Reese and Dewey assumed it's just another old woman, their parents hired to watch them. They decide to do …

The night shift at Lucky Aide is held hostage by two robbers, since Craig does not want to give up the combination for the store's safe. Francis tries to help a heartbroken friend at the academy, whil…

Malcolm's humiliation as a Krelboyne drives him crazy, so he fakes his way into seeing the school's shrink, with whom the con continues.

Malcolm gets a role in the high school play and is so captivated by high school gossip that he forgets his lines. Lois discovers the joys of massage. Hal and Dewey build a society of model buildings i…

Reese, promising champion of his school's wrestling team, gets beaten by a girl, completely demoralizing him. So he gives up his school-bully carrier, which destabilizes the natural order of things at…

Dewey starts carrying a purse to school. Francis's friend Richie joins him at military school. Malcolm becomes a slave to an old woman in the neighborhood.

Lois and Hal try to end Dewey's dependence on his stuffed animal Domingo by convincing him that it is too dirty. Strangely attracted, Malcolm finds himself in emotional confusion about the new weird K…

New neighbors, who turn out to be even more awful than Malcolm's family, move in next door; the Marlin Academy cadets prepare for a visit from Oliver North.

Hal feels like his job is a piece of c* after going to Dewey's class for parent job day. So he decides to take a "kidney failure" weeks off. While Francis is forced to work at the lucky aid over sprin…

Lois' estranged parents, Ida and Victor, pay the family a visit. Right away, trouble starts brewing. Victor bonds with Reese, Ida gets Malcolm into a fight, and Dewey is haunted by childhood memories …

Lois gets a traffic ticket and immediately blames Francis and makes him get the money to her. To do this, Francis stages a stunt for the other cadets' amusement. Malcolm finds evidence that Lois was…

A hospital stay unsettles Malcolm, who's stuck in a kids ward with what may be appendicitis. Meanwhile, at military school, Francis leads a hunger strike.

A cooking class energizes Reese; a planned party irks Malcolm, whose brutal honesty hurts the hostess, Krelboyne Cynthia.

Malcolm and the Krelboynes tutor Reese, and uncover the real reason behind his failing grades.

Malcolm and Reese go to a bowling party where they vie for the attention of a cute girl.

Francis has an extra ticket for a wrestling event and it is the prize pitting Malcolm vs. Reese in a one-upmanship war; caring for Craig's cat is troublesome for Dewey.

Lois forbids the boys to ride a motorbike they found, but Reese disobeys and breaks a leg.

Malcolm, Dewey, Stevie, and Reese hide out at a traveling carnival after hours and run afoul of a determined security guard and several members of the freak show.

Hal is inadvertently responsible for a toxic chemical spill that forces a neighborhood evacuation; Malcolm deals with being grounded even in the emergency shelter; Francis suffers through a date with …

Lois is two weeks late with her period, causing her and Hal to panic and start a big fight, while trying to keep it from the boys. And while Dewey is scared that his parents may split up, Hal and Lois…

The family takes a vacation with the Kenarbans, sharing a houseboat. And while Steve's parents are caught in a fight, Reese and Steve socialize with some cheerleader from a nearby spirit camp, Malcolm…

Being fed up with military school, Francis gets himself legally emancipated so he can go north to Alaska with his friend Eric and become a logger. This does not sit well at all with the family.

Lois, in an attempt to get a break from the family, joins a book club that turns out to be a night off for frustrated housewives, but it all goes a little bit haywire. Meanwhile Francis tries to get t…

Francis has to stay a couple of days in a small county jail and enjoys it more then he expected. Malcolm finds himself with a girlfriend, which add to his usual social anxiety. Dewey makes friend with…

In an effort to contribute to society and to make her boys useful at the same time, Lois "volunteers" Malcolm, Reese and Dewey for charity work at a local church. The boys are assigned to sort giant p…

When Hal's doctor discovers something suspicious during his routine check-up, Lois and Hal become frantic, nervous wrecks as they wait for the test results. As a result of her anticipation, Lois becom…

When Malcolm and his brothers destroy their Christmas tree ornaments, Lois punishes them by canceling Christmas and moves all the presents into the garage. The only way she will reinstate the holiday …

Poker showdowns with Abe give Hal a flush; dance lessons turn Lois awhirl; an Alaskan blizzard entraps and rattles Francis. (TV Guide)

Trouble finds Reese at his new fast-food job; a new Krelboyne tutors Malcolm; Hal and Lois sabotage Dewey's plan to get a dog.

A negative job-performance review riles Lois; hoops play with the boys energizes Hal; a vermin infestation busies rat-killer Francis.

Juicy guest casting and ingenious plotting enliven an hourlong episode that airs in the plum post-Super Bowl slot. One storyline unfolds at Hal's company picnic, where Lois clashes with a blabby wife …

After Hal is mistaken by his new boss, as that guy's boss, Hal plays along. Malcolm is in a three-legged scavenger hunt with the girl he likes, but becomes upset after he confesses he likes her, and s…

Highway horror: Reese gets a learner's permit, which he promptly proceeds to abuse by commandeering a driving-school vehicle.

The return of the smart and sassy Cynthia rattles Malcolm, who's astonished by her physical maturation. And so is drooling Reese.

The arrival of Francis's new bride on Hal's birthday sparks a fray that drives the younger siblings out---and into a posh hotel.

Clever Hal invigorates Dewey's soccer team; sly Reese blackmails a philandering neighbor; obsessed Malcolm battles a computer program.

Dewey rules, thanks to his new dog that intimidates Malcolm and Reese; Hal and Lois hit the town with big plans---and flu symptoms.

Girls in the house spell trouble for the boys, who are on their own while Dad's hosting a poker game that's more about one-upmanship than cards.

An embattled psychiatrist probes the boys' naughty behavior patterns in a session framed by flashbacks to past episodes.

Lois gets jury duty and Hal tries to figure out what case she's working on. Meanwhile, Malcolm and Reese saw Stevie's mom naked and brag about it, they also take Dewey to the sewers and get lost.

Back in the general school population, the Krelboyne whiz kids wind up in cliques with jocks, skateboarders and brooding "Goths."

New monkey business occupies Reese, now a self-appointed law enforcer; a capuchin monkey has it in for Lois's co-worker, Craig.

Malcolm, whose frenetic home life is a kind of zoo, begins the fourth season by accompanying his family to the real thing. A visit to the zoo offers close encounters with creatures great and small. Bu…

High school's first day vexes Malcolm, who acquires an unfortunate nickname; and Hal, a parental "volunteer" running afoul of authority.

Christopher Lloyd adds to his gallery of eccentric characters, playing Hal's quirky, cranky and very wealthy father, Walter, in this rollicking episode. The occasion is a birthday celebration for the …

Acting dumb like Reese eases Malcolm's stress and lands him a date with the new light of his life, an attractive girl who's really a dim bulb.

Brotherly love is lost on Malcolm and Reese, now out to sabotage his sibling's birthday in devilish strikes met with crafty counterattacks.

Malcolm starts to date Nikki. Meanwhile, Hal and Lois must take abstinence pills in an attempt to be better parents. At the ranch, Otto is furious with the other ranchers who keep destroying the fence…

After joining the basketball team at school, Malcolm soon finds himself under the coach's skin due to his constant complaining, which eventually gets him kicked off the team. Determined to put an end …

On a visit to Francis' dude ranch Hal can't help being disappointed in Francis' success, Reese and Malcolm fear Francis has turned into an overly responsible grownup, and Gretchen punishes Dewey for b…

Grandma Ida is even nastier than usual (if that's possible) because of a tumble down the front steps that resulted in a broken collarbone, prompting her to sue her daughter and son-in-law for pain and…

After being rattled by a battle among the boys, a pregnant Lois ponders the consequences of raising another brawling kid. So she fantasizes that her unruly sons have morphed into well-behaved young da…

A sex lecture from Lois rattles Malcolm; a ranch calamity unnerves Francis; disharmony among Hal's music group is a prelude to their concert. Also, a day in jail tests a defiant Reese, who faces a "Sc…

After Lois is out of town, Malcolm and Hal got into a fight leading Malcolm to get expelled from his house. Malcolm lives with his girlfriend in her attic, as Hal put signs for "Missing Malcolm."

Jessica, a sly, 16-year-old sitter outfoxes the boys while Lois is away and Hal's busy with a second job as a whiz of a salesman.

Malcolm tries to emancipate Dabney from his overbearing mother while Hal invites his ne'er-do-well old buddy to the house. At the ranch, Francis is forced to share a room with Otto.

A garage sale that's entrusted to Reese (yikes!) yields treasures near and dear, like Hal's old radio transmitter, which he makes operational. And a PC dating back to 1976 that Malcolm plans to sell t…

An academic competition faces the Krelboynes in an event Malcolm derides. Especially when he learns his teacher has a cheating plan. Also: a commitment to a formal dance ruffles Reese, who's now tryin…

Hal and Lois are penning their will, and think back to all the trouble their sons put them through. It is there that Lois' problems with Francis are finally revealed and how her inability to admit whe…

When Hal and Lois go out of town for a "last chance" getaway before the baby comes, Reese has a big bash that gets out of hand. College-age thugs show up, cancel the party and set up a drug-making ope…

Leonard, a cynical, genius chess player with no friends or job, makes Malcolm think he could grow into a similar adulthood. Determined to prevent this undesirable fate, Malcolm tries to help Leonard c…

Lois goes into labor while Hal and the boys are at a bridal exposition. Ida moves in after her apartment burns down and she refuses to stay with Susan.Dewey reveals the date his parents chose for the …

While Lois is in labor, the house is hectic, and Hal, desperate to get home, has crashed the car on the way out of the expo.

With the arrival of their fifth child, Lois and Hal search for a "creative" daycare solution.

When Dewey's pet rabbit does good in a state contest, the family must travel to Las Vegas for the nationals. But Reese unknowingly sells the rabbit to a restaurant. Now it is up to Dewey (with a littl…

Hal and the boys offer to watch baby Jamie so an exhausted Lois can finally get some sleep. Hal leaves the boys in charge while he goes to the Lucky Aid to pick up more diapers. While the boys are wat…

No one wants to tell Stevie his parents are getting a divorce, until Reese spills the beans.

Malcolm skips out on Thanksgiving to go to a party; Reese becomes abusive to Hal and Dewey as he attempts to prepare Thanksgiving dinner.

Malcolm chooses Reese as his subject for an Abnormal Psychology mid-term project; Dewey earns some extra cash as a street performer.

Malcolm gets a job working for Lois on the drugstore loading dock but is shocked to find that Lois smokes. She makes him promise not to tell, then turns her back on him and writes him up for a silly o…

Hal, Reese, Malcolm, and Dewey go into business selling Christmas trees, with the boys using some of their own money, but two priests send homeless people to their business, trying to sabotage their s…

Neighbors have the annual "The Wilkersons are gone" block party until they come home early. Reese and Dewey set up a plan to get money by letting Reese-tortured kids get revenge. Hal and Lois enter a …

Malcolm alerts the A.C.L.U. when he encounters censorship working on the high-school literary magazine; Hal tries to flirt with the woman in his office responsible for cutbacks.

Jamie's babysitter coerces Malcolm into doing a "small" task for her; Dewey finds a friend, only to lose him to Reese; Francis persuades Otto to confront an old adversary that once courted Gretchen.

Malcolm gets his tongue pierced and needs to hide it for a month. While Lois' mother, Ida, comes and annouces that she will marry a rich Chinese Man that she met on a cruise. Malcolm gets complication…

Malcolm is convinced to play Softball by Lois and ends up doing very badly at it due to Lois's hold on him. Meanwhile, Francis tries to pick fights with Lois, Reese tries to break Francis's record of …

Lois' younger sister, Susan, pays the family a visit and brings with her expensive gifts for the boys, biting remarks for Lois and a cold shoulder for Hal – whom she has never forgiven for dumping her…

Lois blows her top over a hidden 15 percent surcharge on the bill at her family's favorite pizza place and stages a boycott...but Hal and the boys are sneaking slices on the side. Malcolm meets Angela…

Francis is determined to show his parents why they should not have kicked Reese out. Meanwhile, Malcolm helps a football player write a college essay.

Lois tags along with Malcolm as he visits a college, but she's determined to room in the dorm Malcolm is staying in when she learns the room is co-ed. Meanwhile, after his father denies him a piano, D…

Hal sets up Abe Kenarben on a blind date with Jaime's babysitter Polly but then realizes Lois has also set her up on a blind date - with Craig. Malcolm, Dewey (with his "lucky" shirt) and Reese also m…

Malcolm convinces Dewey to do poorly on an I.Q. test, so that he won't become a ridiculed Krelboyne student. But Dewey does so badly that he is placed in a class for the emotionally disturbed. Hal and…

When Dewey's annual candy selling event for school comes up, he uses the excuse of "these bars help support america" to sell them. Malcolm and Stevie attempt a science experiment, and are shocked when…

When Lois tracks down her father's "other family," she meets Victor's "other wife" Sylvia, and learns something shocking about her dad.

Reese's new girlfriend Beth is about as dumb as he is. Malcolm initially dislikes her but they soon get to like each other too much and Beth breaks up with Reese. Devastated, Reese runs away and joins…

Reese continues to be a great soldier in the Army until he finds himself in a situation where his Sergeant cannot help. But after comparing being captured to being grounded, he takes action and leads …

When Reese realizes the Army is too much for him to handle, he deserts and dresses as an Afghani woman. But Lois is on a march to find him, and travels to Kabul to hunt him down. Meanwhile, Malcolm vo…

The Buseys disappear after Dewey leaves the special-needs class; Hal becomes the leader of a group of brainless bodybuilders.

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 fi…

Malcolm and Reese plot revenge after they realize their teenage neighbor has tricked each of them into believing the other is gay. Meanwhile, Hal, tired of competing with a neighbor who always outdoes…

Kitty returns and asks Lois for help getting Kitty's estranged husband back; Francis comes home and puts Dewey through the torturous "Brotherhood Initiation."

Hal and Lois, strapped for cash, decide that Christmas gifts will have to be homemade this year. When everyone makes much better gifts than Hal, he spins a bigger and bigger lie about the present he h…

Hal is sleepless because of their upcoming 20th wedding anniversary. So he ask Reese for some ideas for presents. Then Reese gets the idea to brainwash his dad while he's nervous. Dewey's friends are …

Lois thinks Jamie is out to get her when Jamie knocks over a shelf and nearly crushes her.

When Malcolm spots a roughed up 1967 Cuda in his neighborhood, he instantly falls in love with it and purchases the car. But he gets so caught up in the difficult task of restoring it that he blows of…

When Lois catches the boys vandalizing a trashy billboard for a strip club, Malcolm alters the vandalism into a women's rights protest, which sparks a colossal media circus. In no time, feminists, con…

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 inspir…

Hal is named executor of his neighbor's living will and must decide whether to keep him on life support or pull the plug. In attempting to make the decision, Hal discovers he is incapable of making de…

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 beli…

During Grandma'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 his Grandmother's leg and give it the prope…

After Hal forbids Dewey from inviting his peculiar classmate Chad over for a sleepover, Dewey quickly finds out that his father had good reason to warm him. Meanwhile, Malcolm and Reese find out that …

When Francis and Piama choose to celebrate Francis' 21st birthday at the house, Hal is reminded of a promise he made to his son as a young child, involving a motorcycle trip that Lois quickly forbids.…

Malcolm discovers a man, Norm, living in the Lucky Aide. He agrees to keep Norm's secret as long as he provides Malcolm with tidbits on his new crush, a fellow Lucky Aide employee. Meanwhile, when Ree…

Lois goes over to visit Ida, but gets unpleasantly surprised by the St. Grotus Day festival. Malcolm fails a music appreciation course, and reluctantly goes to Dewey for help. Reese and Hal secretly w…

Reese befriends a pack of troublesome stray dogs; Dewey feels conflicted when he starts seeing another mother-figure; Hal unwittingly becomes a motivational speaker.

After Lois and Hal are reminded of the tight budget they must uphold, Hal discovers one of his boys has been dialing a 900 number. His attempt to explain the error to the hotline's billing department …

When Hal decides to attend his first annual Neighborhood Association meeting with Malcolm, he is strongly encouraged to take on the role of President. Being his dad's right-hand man, Malcolm sees a pe…

Unbeknownst to Lois, the boys enter her 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…

The family attends the counterculture Burning Man festival in the desert.

When Hal forgets to pay the family's health insurance, the company will not reinstate it until Monday, so he panics and locks the boys in their room to keep them from getting hurt.

When Hal catches Dewey smoking, he makes a deal with him that he will stop drinking coffee if Dewey quits smoking.

Reese and Malcolm try to perform the ultimate Halloween prank.

When Jessica goes through some family troubles, Lois agrees to let her stay at the house, making the boys crazy.

When Malcolm gets paired with a dimwitted beauty as his chemistry partner, he thinks it's a recipe for disaster, but when she reveals her feelings for him, sparks fly. They agree to keep their romanti…

Francis decides to surprise the family by coming home, and the power goes out in the house. Meanwhile, it's Lois who's in the dark when Hal decides to cancel their anniversary dinner in favor of a Ree…

When Lois finds renewed energy with orthotic inserts for her shoes, Hal fears she will not look to him for support anymore and plots to destroy the inserts. A former female army buddy of Reese's comes…

Lois thinks the new babysitter she found for Jamie is perfect... until she starts driving Lois crazy. Meanwhile, Reese starts getting picked on by the teacher when he and Malcolm are in the same class…

Malcolm receives a check for $10,000. After Hal and Lois find out, they decide to keep the money and spend it on something for themselves. However, when Dewey overhears this, he wants to get in on it,…

Lois, Hal, and Dewey go out of town for a piano competition, so they get Ida to watch over Malcolm and Reese while they're gone. Since Ida thinks Reese needs to become a man, she comes up with a compe…

A broke Francis gets talked into getting a real job by Dewey, but one of Francis' rocker friends decides to offer him the position of tour manager of his band instead. Back home, Hal takes over the co…

Lois discovers she has mono after a visit to the doctor. She then ends up giving it to Malcolm after her maternal instincts begin. As a result, both Lois and Malcolm are forced to spend an entire day …

Hal learns that his father has passed away, but sheds no tears and passes it off as nothing since he never knew him. So, to make sure nothing like that happens again, he lets the boys do whatever they…

Francis receives a visit from Lois and Hal to celebrate his one-year anniversary of sobriety. However, when they attend one of his A.A. meetings, it's revealed that it was Lois who forced him to start…

When four popular high school girls play an evil prank on Reese by pretending he has a secret admirer and then dropping a pig off at his front door, Lois comes to his rescue. She plots her revenge on …

Hal's friend Trey tells him to come to his dental office when he looses a tooth during a poker game, but their friendship becomes in jeopardy when Hal's faced with a $2,000 bill and causes a fight bet…

Malcolm joins a local dance class to impress a girl, but when she loses her footing, he realizes that to win the competition he'll need a partner who can step it up. Dick, a rival student in the class…

When Stevie goes to the hospital, Malcolm tries making up every excuse he can think of to not go because he can't face the truth about his illness. Meanwhile, back home, Hal gets highly competitive ab…

Reese meets a cute vegetarian named Carrie when he goes back to work at the meat plant. At first, he goes along with her political talk, but she catches him with a pork chop. So, to get Carrie back, h…

For the senior prom, Reese gets paid to take Janine, a studious girl in class, but only after she gives him a makeover and sends him to finishing school, while Malcolm aligns with the unpopular kids t…

Malcolm struggles with his speech when he's elected valedictorian of his graduating class at school. However, Lois refuses to listen to any of his complaints and reveals that she wants him to become P…