Season 1

#1 Pilot Episode (Jan 9, 2000)
Malcolm reluctantly befriends another lad with a high IQ and stands up to a bully.

#2 Red Dress (Jan 16, 2000)
A battle of wits and wills ensues between the boys and their angry mom, who wants to find out who ruined her red dress.

#3 Home Alone 4 (Jan 23, 2000)
While parents are away, kids will play — and Malcolm winds up in the hospital. Malcolm and his brothers try to keep the hospital visit a secret from their mom and dad.

#4 Shame (Feb 6, 2000)
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.

#5 Malcolm Babysits (Feb 13, 2000)
Malcolm's cushy babysitting job provides relief from the trailer the family is stuck using while their house is being fumigated; the school's master key leads Francis to a corpse, for which he provides a proper send-off.

#6 Sleepover (Feb 20, 2000)
Malcolm and Stevie are swept into a strange, nighttime escapade; Francis turns the tables on hazing pranksters at his military school.

#7 Francis Escapes (Feb 27, 2000)
Francis goes AWOL from military school to link up with his girlfriend, a ditsy doozy who's made him gaga.

#8 Krelboyne Picnic (Mar 12, 2000)
Disasters abound at a gifted kids' picnic, where stage acts bomb, families feud and Malcolm's dad serves meat to vegetarians.

#9 Lois vs. Evil (Mar 19, 2000)
Lois's firing prompts household economizing. Meanwhile, Francis delights in his honor-guard duty — at a teenage beauty pageant.

#10 Stock-Car Races (Apr 2, 2000)
Portraits of mischief-makers: the younger kids at a stock-car race and elder brother Francis at military school, where he's keeping a boa constrictor as a pet.

#11 Funeral (Apr 9, 2000)
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.

#12 Cheerleader (Apr 16, 2000)
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.

#13 Rollerskates (Apr 30, 2000)
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.

#14 The Bots and the Bees (May 7, 2000)
While the design of a "killer robot" preoccupies Malcolm, his mom takes on the automaton who commands Francis's military school.

#15 Smunday (May 14, 2000)
The boys learn that Francis ratted on them, so they threaten to reveal his recent misdeeds to Mom. Trouble is, she's delirious with the flu.

#16 Water Park (May 21, 2000)
Beatrice Arthur plays a no-nonsense sitter tending to Dewey, while Malcolm and Reese romp at an amusement park; and Francis is being hustled at pocket billiards by his military-school commandant.

Season 2

#17 Traffic Jam (Nov 5, 2000)
This episode resolves the plight of runaway Dewey and entraps other family members in a horrendous traffic jam, where an ice-cream truck is under siege and Malcolm is smitten.

#18 Halloween Approximately (Nov 8, 2000)
Post-Halloween mischief busies the boys, who arm a giant slingshot with icky ammo. A subplot pits Hal against a hot-rodder.

#19 Lois (Nov 12, 2000)
Crummy gifts rile birthday gal Lois, who suddenly splits from home, leaving confusion, anxiety and desperation in her wake.

#20 Dinner Out (Nov 15, 2000)
Shenanigans abound at the fancy spot where the family's dining, and at Francis's school, where rowdy teenage girls are partying.

#21 Casino (Nov 19, 2000)
A family vacation turns into an ordeal in the desert for Hal, Reese and Malcolm, who wander onto an artillery range.

#22 Convention (Nov 22, 2000)
While Hal and Lois wreak havoc out of town, the boys are almost angelic at home — thanks to the care of a sexy sitter.

#23 Robbery (Nov 26, 2000)
Gun-wielding robbers menace Lois and Craig at the store; swarming bats beset Hal and the boys at home.

#24 Therapy (Nov 29, 2000)
Humiliation as a Krelboyne is driving Malcolm bananas, so he fakes his way into seeing the school shrink, with whom the con continues.

#25 High-School Play (Dec 13, 2000)
Talk about typecasting...Malcolm plays impish Puck in A Midsummer Night's Dream and is captivated by the high-school drama crowd.

#26 The Bully (Dec 20, 2000)
Bullying Reese suddenly turns into a wimp, thanks to a thrashing by a high-school wrestling foe — who just happens to be a girl

#27 Old Mrs. Old (Jan 7, 2001)
The punishment fits the crime...Malcolm must work for an ill-tempered, elderly lady whose arm he accidentally broke.

#28 Krelboyne Girl (Jan 14, 2001)
A new schoolgirl is bright, clever, tough — and smitten with Malcolm. And he just doesn't know how to deal with that.

#29 New Neighbors (Jan 21, 2001)
New neighbors turn out to be nuttier and wilder than Malcolm and his family, so naturally, a feud ensues.

#30 Hal Quits (Feb 4, 2001)
Depressed Hal leaves his job to become an artist, while dispirited Francis takes a menial spring-break job.

#31 The Grandparents (Feb 11, 2001)
Robert Loggia and Cloris Leachman play Lois's visiting parents, an irascible couple who have a clear impact on their grandchildren.

#32 Traffic Ticket (Feb 18, 2001)
A traffic ticket vexes Lois, who's sure she got it for not giving preferential treatment to a cop at the Lucky Aide store.

#33 Surgery (Feb 25, 2001)
A hospital stay unsettles Malcolm, who's stuck in a kids ward with what may be appendicitis. At military school, Francis leads a hunger strike.

#34 Reese Cooks (Mar 4, 2001)
A cooking class energizes Reese; a planned party irks Malcolm, whose brutal honesty hurts the hostess, Krelboyne Cynthia.

#35 Tutoring Reese (Mar 11, 2001)
Desperate circumstances find impatient Malcolm tutoring a flunking Reese, and forlorn Francis staying at a buddy's pigpen.

#36 Bowling (Apr 1, 2001)
Interwoven storylines recount the bowling misadventures of Malcolm and Reese on separate trips to the lanes with Lois and Hal.

#37 Malcolm vs. Reese (Apr 22, 2001)
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.

#37 Mini-Bike (Apr 29, 2001)
Lois's refusal to allow the boys a minibike results in pleas, arguments and, ultimately, a scheme that plays upon her own childhood.

#37 Carnival (May 6, 2001)
Scenario for havoc: Malcolm, Reese, Dewey and Stevie at county fairgrounds that have been locked up and closed for the night.

#37 Evacuation (May 13, 2001)
A school gym becomes a hectic shelter for Hal's family and scores of others, relocated in the wake of a toxic-chemical spill caused by a derailed train. Seems it ran over a couch that fell off Hal's car on his way to the dump.

#37 Flashback (May 20, 2001)
In flashbacks, the second-season finale recalls the tumultuous births and early years of Lois and Hal's four rambunctious sons.

Season 3

#37 Houseboat (Nov. 4, 2001)
It's still summer-vacation time on the jaunty third-season opener, which finds Malcolm and his rowdy clan cruising on a lake in a houseboat with Stevie and his straitlaced parents, Abe and Kitty Kenarban. Some vacation. The vessel itself is a fright, a weathered heap that Dewey hates from the get-go because “There's no TV! There's no TV! There's no TV!” An equally distraught Malcolm is shanghaied by Hal for a fishing expedition, leaving lucky Reese the chance to trawl for bikini-clad beauties at a nearby camp. Back on board, the close quarters are slowly driving Abe off the deep end.