第 3 季 共 22 集
播出时间：2001年11月12日
第 1 集 Houseboat
播出时间：2001年11月12日
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 is stuck with Hal fishing. At the military academy, Eric turns eighteen and leaves for Alaska, inspiring Francis to do something about his situation too.
第 2 集 Emancipation
播出时间：2001年11月15日
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.
第 3 集 Book Club
播出时间：2001年11月19日
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 to Alaska, learning something important about himself and about truck drivers. Hal, who tries to keep the boys out of troubles for the evening, is caught in an inner conflict about how to treat them.
第 4 集 Malcolm's Girlfriend
播出时间：2001年11月29日
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 a new kid in the area, helping the kid's mother to compose Dewey's dream birthday party for his new friend.
第 5 集 Charity
播出时间：2001年12月3日
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 piles of donated clothing, game, appliances etc. Initially irritated at their new task, they realize the donated stuff is a lot nicer than their own possessions, and they begin swapping out their old stuff with the second-hand items. The boys soon make a enterprise out of their charity assistance, going as far as to sell things to the neighborhood kids - that is until Hal finds out. Meanwhile, Francis must come to grips with the fact his fabulous job in Alaska is not quite what he expected.
第 6 集 Health Scare
播出时间：2001年12月10日
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 becomes even stricter with the boys, leaving them to misinterpret the new house rules. Meanwhile, in Alaska, Francis comes to blows with his boss.
第 7 集 Christmas
播出时间：2001年12月17日
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 is if the boys behave impeccably up to Christmas morning. Her plan works better than expected, and Lois is touched that her family responded so well to her challenge. Meanwhile, the boys decide that Lois could use this tactic for future holidays and retaliate by breaking into the garage and opening up all the presents. Elsewhere, Francis is forced to visit his Grandma Ida for Christmas.
第 8 集 Poker
播出时间：2002年1月7日
Poker showdowns with Abe give Hal a flush; dance lessons turn Lois awhirl; an Alaskan blizzard entraps and rattles Francis. (TV Guide)
第 9 集 Reese's Job
播出时间：2002年1月21日
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.
第 10 集 Lois's Makeover
播出时间：2002年1月28日
A negative job-performance review riles Lois; hoops play with the boys energizes Hal; a vermin infestation busies rat-killer Francis.
第 11 集 Company Picnic (1)
播出时间：2002年2月4日
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 (Susan Sarandon) and her beleaguered spouse (Kaczmarek's real-life husband, Bradley Whitford); and Hal runs afoul of his new boss (Stephen Root) and the big cheese (Patrick Warburton). In Alaska, Francis's scheme to win a bet involves rigging a hockey game that pits loggers vs. a fearsome women's squad led by a blowhard coach (Terry Bradshaw).
第 12 集 Company Picnic (2)
播出时间：2002年2月4日
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 she says she likes another boy. Reese is also the the scavenger hunt, and at first doesn't like the big dumb bully he is with, but they grow to like each other when they bond over beating up the other contestants and stealing their items. Lois continues to balance keeping Dewey intact and dealing with the crazy woman, but now must talk to the husband as well. Francis continues to sabotage his own team, this time on the ice.
第 13 集 Reese Drives
播出时间：2002年2月11日
Highway horror: Reese gets a learner's permit, which he promptly proceeds to abuse by commandeering a driving-school vehicle.
第 14 集 Cynthia's Back
播出时间：2002年2月18日
The return of the smart and sassy Cynthia rattles Malcolm, who's astonished by her physical maturation. And so is drooling Reese.
第 15 集 Hal's Birthday
播出时间：2002年3月4日
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.
第 16 集 Hal Coaches
播出时间：2002年3月11日
Clever Hal invigorates Dewey's soccer team; sly Reese blackmails a philandering neighbor; obsessed Malcolm battles a computer program.
第 17 集 Dewey's Dog
播出时间：2002年4月8日
Dewey rules, thanks to his new dog that intimidates Malcolm and Reese; Hal and Lois hit the town with big plans---and flu symptoms.
第 18 集 Poker 2
播出时间：2002年4月22日
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.
第 19 集 Clip Show
播出时间：2002年4月29日
An embattled psychiatrist probes the boys' naughty behavior patterns in a session framed by flashbacks to past episodes.
第 20 集 Jury Duty
播出时间：2002年5月2日
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.
第 21 集 Cliques
播出时间：2002年5月6日
Back in the general school population, the Krelboyne whiz kids wind up in cliques with jocks, skateboarders and brooding "Goths."
第 22 集 Monkey
播出时间：2002年5月13日
New monkey business occupies Reese, now a self-appointed law enforcer; a capuchin monkey has it in for Lois's co-worker, Craig.
