Kenneth Mars as Otto Mannkusser
Episodes 29
Zoo
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. But Hal wishes he could have passed on an encounter with Lois's former beau, who lectures on rain-forest animals. Elsewhere, Reese butts heads with a goat; and Malcolm and Dewey take a tumble into a tiger den. Another storyline checks in on ne'er-do-well Francis, now the unlikely foreman of a dude ranch owned by a cheery German businessman.
Read MoreHumilithon
High school's first day vexes Malcolm, who acquires an unfortunate nickname; and Hal, a parental "volunteer" running afoul of authority.
Read MoreStupid Girl
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.
Read MoreForwards Backwards
Brotherly love is lost on Malcolm and Reese, now out to sabotage his sibling's birthday in devilish strikes met with crafty counterattacks.
Read MoreForbidden Girlfriend
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 that Francis is building to keep the cattle inside.
Read MoreMalcolm Holds His Tongue
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 to his horrible habit of talking before he thinks, Malcolm starts "holding his tongue" which solves all the problems with his coach, girlfriend, and parents, but it ends up causing more stress than before. Meanwhile, Hal takes up speed walking and is desperate to be the best while Reese gets Craig to take him and Allison to a concert and almost ruins his date.
Read MoreBoys at Ranch
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 breaking a valuable doll.
Read MoreLong Drive
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 "Scared Straight" encounter.
Read MoreKicked Out
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."
Read MoreStereo Store
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.
Read MoreHal's Friend
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.
Read MoreGarage Sale
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 to Craig for $1300.
Read MoreAcademic Octathalon
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 trying to ditch his date.
Read MoreFuture Malcolm
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 change his life by lining him up for a job interview with the obnoxious Craig. Meanwhile, Francis finds employ as a nude model and begins to delight in the exposure.
Read MoreVegas
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 little help from a "choking" Reese) to try and save the rabbit.
Meanwhile, Malcolm tells Hal and Lois that they embarras him, and that is why he didn't tell them he won state science honors. As a form of repayment, Malcolm gets great seats for him and Lois to see Lois' favorite singer. Lois then gets lucky and is invited backstage where all she really wants to do is figure out why Malcolm doesn't want her around.
Hal, on the other hand, is looking all across Las Vegas for a slot machine that he has had dreams of winning the jackpot on.
Francis is also in trouble when he gets behind on duties at the ranch, and for the first time sees that Otto isn't just a pushover for everything.
Read MoreGoodbye Kitty
No one wants to tell Stevie his parents are getting a divorce, until Reese spills the beans.
Read MoreMalcolm Films Reese
Malcolm chooses Reese as his subject for an Abnormal Psychology mid-term project; Dewey earns some extra cash as a street performer.
Read MoreMalcolm's Job
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 offense. Meanwhile, Dewey runs away to the Ranch to be with Francis because he says he is tired of Reese and Malcolm. Hal is also busy, secretly betting on and entering Jaime in baby competitions.
Read MoreChristmas Trees
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 sale.
Read MoreBlock Party
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 kielbasa-eating contest and Malcolm unknowingly assists a robbery, but a surprising twist comes in the end.
Read MoreDirty Magazine
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.
Read MoreIda's Boyfriend
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 complications when his tongue ring gets infected, rendering him unable to say "S's" and he discovers that Ida has been drugging her fiancé with opiates and mood enhancers. When Lois and Hal confront Ida, she drugs them with free food. But luckily, the fiancé misses a drug treatment, and realizes that Ida is a terrible woman and he leaves her at the altar. Malcolm is punished for his tongue piercing. Meanwhile at the ranch, Otto decides to hire a murder mystery acting troup, but it all turns out badly.
Read MoreMalcolm Dates a Family
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 and becomes instantly smitten with her intellectual family...but starts to feel like a heel because he's asked another girl to the school dance and is forced to break it off with her--er--them. And Francis is reluctant to let Otto hire an assistant for him...but soon comes to like the idea.
Read MoreMalcolm Visits College
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, Dewey begins stealing objects from around the house to amuse himself and to drive Hal crazy. Reese meets a girl, who he thinks is a narc, and he pretends he is a dealer, unaware that she is really an undercover cop.
Read MoreDewey's Special Class
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 Craig compete in a dance competition.
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