 | 1x01 Pilot (Air Date: Jan. 09, 2000)
A young boy named, Malcolm is found to have a genius IQ. He is placed into a gifted class though he would much rather remain with the normal kids. Now he must deal with the fact that he ... |  | 1x02 Red Dress (Air Date: Jan. 16, 2000)
Lois finds her red dress destroyed before her anniversary dinner and demands to know which of the boys destroyed it. While waiting for Lois, Hal gets to know the staff at the restaurant ... |  | 1x03 Home Alone 4 (Air Date: Jan. 23, 2000)
Francis is in charge of the house and his brothers while Lois and Hal are gone. Malcolm convinces everyone to be good since there might be a chance that Francis will be able to stay. Meanwhile ... |  | 1x04 Shame (Air Date: Feb. 06, 2000)
Malcolm feels overwhelming guilt when he attacks a seven year old bully. He tries to find varies ways to repent. Meanwhile Francis tries to fix up the sex education program at military school ... |  | 1x05 Malcolm Babysits (Air Date: Feb. 13, 2000)
While Malcolm's house if being fumigated he gets to babysit for the perfect family. All goes well until he finds out that he doesn't have as much of their trust as he thinks. Meanwhile Hal ... |  | 1x06 Sleepover (Air Date: Feb. 20, 2000)
While sleeping over Stevie's house Malcolm convinces him to sneak out. While they are out at the arcade, Stevie's wheelchair gets lost. At military school Francis deals with a group of ... |  | 1x07 Francis Escapes (Air Date: Feb. 27, 2000)
Francis runs away from military school and returns home to see his girlfriend - but she turns out to be a thief who doesn't seem the slightest bit interested in him after all. He takes refuge ... |  | 1x08 Krelboyne Picnic (Air Date: Mar. 12, 2000)
When the entire family attends a picnic for Malcolm's class, they each get into disastrous situations. Lois gets into a fight with another mother, Hal gets in trouble for cooking real meat, ... |  | 1x09 Lois vs. Evil (Air Date: Mar. 19, 2000)
When the boys destroy a steam cleaner at Lois's job, she is fired. This causes Lois to restrict as much money spending as possible in the family which leads to a food drive and Hal being ... |  | 1x10 Stock Car Races (Air Date: Apr. 02, 2000)
Hal lets the boys skip school in order for them to go to the stock car races with him. While Hal watches the race, Dewey gets lost, and Malcolm and Reese get taken away by a security guard. ... |  | 1x11 Funeral (Air Date: Apr. 09, 2000)
Malcolm passes up his aunt's dreary funeral in favor of a date with a beautiful girl - but she surprises him by arriving early, catching him half-dressed. |  | 1x12 Cheerleader (Air Date: Apr. 16, 2000)
Malcolm helps Reese become a male cheerleader in the hope of attracting a girl, Francis confides in headmaster Spangler, and Dewey becomes increasingly demanding. |  | 1x13 Rollerskates (Air Date: Apr. 30, 2000)
Malcolm suffers his father's roller-skating tutelage and Lois is put out of action by a back injury. |  | 1x14 The Bots and the Bees (Air Date: May. 07, 2000)
Malcolm and his brothers decide to build a robot while Lois is out of town visiting Francis, only for their dad to take over the whole project. |  | 1x15 Smunday (Air Date: May. 14, 2000)
Malcolm and his brothers take advantage of Lois's illness by persuading her it's Sunday so they don't have to go to school, while Hal goes in search of a sports car. |  | 1x16 Water Park (1) (Air Date: May. 21, 2000)
Malcolm and Reese fight it out at a water park, Spangler challenges Francis to an unusual variation on the game of pool, and Dewey spends the day with a peculiar babysitter. |
 | 2x01 Traffic Jam (2) (Air Date: Nov. 05, 2000)
Malcolm finally meets his match in the form of an intriguing girl and Reese attempts to break into an ice-cream truck. Meanwhile, Francis makes a bold bet at military camp and Dewey wanders ... |  | 2x02 Halloween Approximately (Air Date: Nov. 08, 2000)
Malcolm and his brothers set about creating the ultimate stealth weapon with a little help from Francis, who is on leave from the military academy. Lois and Hal tackle a dangerous driver ... |  | 2x03 Lois's Birthday (Air Date: Nov. 12, 2000)
Lois runs away from home after the boys ruin her birthday, and it proves difficult to persuade her to return. |  | 2x04 Dinner Out (Air Date: Nov. 15, 2000)
The family has an ill-advised dinner date with the Kenarbans and Francis regrets inviting local girls to a party at Marlin Academy. |  | 2x05 Casino (Air Date: Nov. 19, 2000)
Hal is banned from gambling at a casino during a family holiday, so he takes Malcolm and Reese on a disastrous trek into the desert instead. |  | 2x06 Convention (Air Date: Nov. 22, 2000)
Lois is amused when an old rival brings out Hal's fighting instincts. The boys get a shock when the new babysitter arrives - instead of being old and boring she's extremely attractive, and ... |  | 2x07 Robbery (Air Date: Nov. 26, 2000)
Lois and Craig find themselves in a hostage situation when the Lucky Aide store is held up by robbers. Hal comes home with an old wardrobe, but soon discovers it isn't the anniversary present ... |  | 2x08 Therapy (Air Date: Nov. 29, 2000)
Reese decides it would be a good idea to join his sibling when Malcolm attends therapy sessions in a bid to get out of schoolwork. Meanwhile, Hal and Lois try to clean out a closet stuffed ... |  | 2x09 High School Play (Air Date: Dec. 10, 2000)
Hal and Dewey build a private Utopia from plastic blocks. Malcolm lands the lead role in the high-school play, but lets his new-found celebrity status go to his head. |  | 2x10 The Bully (Air Date: Dec. 17, 2000)
When Reese relinquishes his position as school bully, Malcolm suffers at the hands of his successors. Meanwhile, Francis dreads his forthcoming birthday, fearing the traditional pranks that ... |  | 2x11 Old Mrs. Old (Air Date: Jan. 07, 2001)
Dewey swaps his backpack for a purse, Malcolm finds himself in hot water with an elderly neighbor, and Francis's lazy friend enrolls at the academy. |  | 2x12 Krelboyne Girl (Air Date: Jan. 14, 2001)
Francis tries to avoid punishment for his latest prank, Dewey overreacts to Lois's lecture and Malcolm experiences his first crush as a confusing mixture of love and hate. |  | 2x13 New Neighbors (Air Date: Jan. 21, 2001)
The neighbors from hell move in next door and Hal insists on making friends with them, while the Marlin Academy cadets prepare for a visit from `the last great hero', Oliver North. |  | 2x14 Hal Quits (Air Date: Feb. 04, 2001)
Hal decides to quit his job to become an artist and Francis wades through a week's worth of inventory work at Lucky Aide, leaving Malcolm to question what his own future career might be ... |  | 2x15 The Grandparents (Air Date: Feb. 11, 2001)
Lois's disapproving parents come to stay, and initially make a generous offer - but then renege on the deal at the last moment. Meanwhile, Francis gets struck down by food poisoning at Mardi ... |  | 2x16 Traffic Ticket (Air Date: Feb. 18, 2001)
Lois disputes an accusation of reckless driving, and orders Francis to pay off the $750 in motoring fines he has accumulated in her name. |  | 2x17 Surgery (Air Date: Feb. 25, 2001)
Malcolm goes into hospital to have an operation for suspected appendicitis, while Francis stages a hunger strike at Marlin Academy. |  | 2x18 Reese Cooks (Air Date: Mar. 04, 2001)
Reese discovers he has a gift for cooking, Malcolm urges his classmate to call off a party and Francis is forced to write a term paper. |  | 2x19 Tutoring Reese (Air Date: Mar. 11, 2001)
Malcolm helps Reese make the grade with his schoolwork, while Francis is banished to a friend's house for defying Lois's order to patch the roof. |  | 2x20 Bowling (Air Date: Apr. 01, 2001)
Malcolm and Reese go to a bowling party where Hal and Lois watch them compete for the attentions of a cute girl. |  | 2x21 Malcolm vs. Reese (Air Date: Apr. 22, 2001)
Francis sets up a contest between Malcolm and Reese to win a coveted wrestling-match ticket, and Dewey loses Craig's cat while its owner is away at a comic-book convention. |  | 2x22 Mini-Bike (Air Date: Apr. 29, 2001)
Hal and Francis attend an enlightening father-and-son weekend at the military academy, while the younger boys put pressure on Lois in their quest for mini-bikes. |  | 2x23 Carnival (Air Date: May. 06, 2001)
The boys sneak out to the county fair, but a drunken security guard locks them inside the grounds. |  | 2x24 Evacuation (Air Date: May. 13, 2001)
Hal accidentally causes a toxic chemical spill that forces the entire neighborhood to evacuate - and even within the confines of an emergency bunker, Malcolm has to deal with the eternal ... |  | 2x25 Flashback (Air Date: May. 20, 2001)
Lois has a pregnancy scare which sparks tension in the household and reminds the couple how much their lives have been affected by their children. |
 | 3x01 Houseboat (1) (Air Date: Nov. 11, 2001)
When Malcolm and Stevie's families go on a houseboat holiday together, nothing seems to go to plan. The brainy troublemaker is forced to go fishing, Dewey is left hanging for hours on a ... |  | 3x02 Emancipation (2) (Air Date: Nov. 14, 2001)
The liberated Francis encourages Lois to let him come home, while the Krelboynes and Malcolm do battle with a difficult new teacher. |  | 3x03 Book Club (Air Date: Nov. 18, 2001)
Lois joins a book club to escape the horrors of her home life and Hal frets about how to make the boys behave in her absence. Meanwhile, Francis hitch-hikes through Canada. |  | 3x04 Malcolm's Girlfriend (Air Date: Nov. 28, 2001)
Malcolm's schoolwork suffers after he gets a girlfriend and Francis holes up with a mad bomber in a remote Canadian cabin. |  | 3x05 Charity (Air Date: Dec. 02, 2001)
Malcolm and his brothers gain personal profit from doing charity work for the church, and Francis discovers what life is like in a logging camp. |  | 3x06 Health Scare (Air Date: Dec. 09, 2001)
Dewey babysits a hamster, Francis is challenged to a fight and Hal discovers a lump during a medical check-up. |  | 3x07 Christmas (Air Date: Dec. 16, 2001)
When Malcolm, Reese, and Dewey finally go over the edge, Lois does the extreme, and takes away Christmas. The boys must behave for the whole day to get Christmas back. |  | 3x08 Poker (Air Date: Jan. 06, 2002)
Hal and Abe fall out over a poker game, Francis gets trapped in a remote cabin during a blizzard and Reese trips the light fantastic at a dance class. |  | 3x09 Reese's Job (Air Date: Jan. 20, 2002)
Reese is accused of stealing by his devious boss when he takes a job flipping burgers to pay for his car insurance. Malcolm is disgruntled when a genius joins his class, and Dewey must prove ... |  | 3x10 Lois's Makeover (Air Date: Jan. 27, 2002)
Lois's colleagues decide she needs a makeover - resulting in unexpected attention from Hal. Meanwhile, Francis learns the art of rat-catching. |  | 3x11 Company Picnic (1) (Air Date: Feb. 03, 2002)
The works picnic proves tricky for the whole family as Hal tries to avoid his new boss, a girl ties Malcolm in knots, and Lois clashes with an obnoxious woman. |  | 3x12 Company Picnic (2) (Air Date: Feb. 03, 2002)
The picnic causes chaos for the family as Malcolm humiliates himself further and Hal can't face admitting his real identity to his boss. Meanwhile, Francis regrets his bet against the loggers' ... |  | 3x13 Reese Drives (Air Date: Feb. 10, 2002)
Reese's first driving lesson takes a dangerous turn, while Francis haggles his way out of debt. |  | 3x14 Cynthia's Back (Air Date: Feb. 17, 2002)
Dewey helps Hal overcome his fear of kites, Malcolm reveals Cynthia's big secret, and Francis finds a totem pole unusually interesting. |  | 3x15 Hal's Birthday (Air Date: Mar. 03, 2002)
Francis brings his new wife home, while the boys get fed up with Lois shouting at them and decide to fly the nest. |  | 3x16 Hal Coaches (Air Date: Mar. 10, 2002)
Dewey is appalled when Hal takes over as coach of the soccer team, and Malcolm gets more than he bargained for when he sets his computer to act out the lives of his family. Reese resorts ... |  | 3x17 Dewey's Dog (Air Date: Apr. 07, 2002)
Hal and Lois battle illness to keep a romantic rendezvous and Dewey brings home a dog - but can't find anywhere to hide it. |  | 3x18 Poker #2 (Air Date: Apr. 21, 2002)
Malcolm, Reese, and Stevie are stuck in the boy's room, with beautiful girls, while Hal plays poker with his new buddies. |  | 3x19 Clip Show (Air Date: Apr. 28, 2002)
Hal forces the boys to see a psychiatrist after they refuse to admit to damaging the family car |  | 3x20 Jury Duty (Air Date: May. 01, 2002)
With Lois on jury duty, Hal decides to solve the murder case he thinks she's working on. Meanwhile, Reese reveals a hidden talent when the boys get lost in a storm drain. |  | 3x21 Cliques (Air Date: May. 05, 2002)
The Krelboyne whiz-kids are forced to integrate with various posers, goths and other cliques in the general school crowd, while Hal and Reese race to knock down Dewey's dominoes. |  | 3x22 Monkey (Air Date: May. 12, 2002)
While ill in bed, Craig becomes infatuated with his helper - a capuchin monkey - and Reese takes control of the neighborhood watch after apprehending an intruder. |
 | 4x01 Zoo (Air Date: Nov. 03, 2002)
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. |  | 4x02 Humilithon (Air Date: Nov. 10, 2002)
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 ... |  | 4x03 Family Reunion (Air Date: Nov. 17, 2002)
Lois finds herself repeatedly insulted at a family reunion, so the youngsters plot revenge and Hal is prompted to stand up to his father. |  | 4x04 Stupid Girl (Air Date: Nov. 24, 2002)
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. |  | 4x05 Forwards Backwards (Air Date: Dec. 01, 2002)
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 ... |  | 4x06 Forbidden Girlfriend (Air Date: Dec. 15, 2002)
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. |  | 4x07 Malcolm Holds His Tongue (Air Date: Jan. 05, 2003)
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. |  | 4x08 Boys At Ranch (Air Date: Jan. 12, 2003)
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 ... |  | 4x09 Grandma Sues (Air Date: Feb. 02, 2003)
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. |  | 4x10 If Boys Were Girls (Air Date: Feb. 09, 2003)
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 ... |  | 4x11 Long Drive (Air Date: Mar. 02, 2003)
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. |  | 4x12 Kicked Out (Air Date: Mar. 09, 2003)
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. |
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