

The family dynamics shift with the arrival of baby Jamie. Malcolm navigates teenage life, including romantic interests and school pressures, while Hal and Lois juggle parenting their growing brood.
All episodes — Season 4
S4 E1Zoo
Nov 3, 20027.422 min
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
S4 E2Humilithon
Nov 10, 20027.422 min
High school's first day vexes Malcolm, who acquires an unfortunate nickname; and Hal, a parental "volunteer" running afoul of authority.
S4 E3Family Reunion
Nov 17, 20028.522 min
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 old man, but the snooty female in-laws s
S4 E4Stupid Girl
Nov 24, 20027.122 min
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.
S4 E5Forwards Backwards
Dec 1, 20027.322 min
Brotherly love is lost on Malcolm and Reese, now out to sabotage his sibling's birthday in devilish strikes met with crafty counterattacks.
S4 E6Forbidden Girlfriend
Dec 15, 20027.822 min
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 ca
S4 E7Malcolm Holds His Tongue
Jan 5, 20037.722 min
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
S4 E8Boys at Ranch
Jan 12, 20037.622 min
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.
S4 E9Grandma Sues
Feb 2, 20037.722 min
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 suffering. And there's more momentous n
S4 E10If Boys Were Girls
Feb 9, 20038.422 min
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 daughters. Malcolm becomes Mallory, Reese
S4 E11Long Drive
Mar 2, 20037.522 min
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.
S4 E12Kicked Out
Mar 9, 20037.222 min
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."
S4 E13Stereo Store
Mar 16, 20037.522 min
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.
S4 E14Hal's Friend
Mar 30, 20037.222 min
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.
S4 E15Garage Sale
Apr 6, 20037.122 min
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.
S4 E16Academic Octathalon
Apr 13, 2003722 min
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.
S4 E17Clip Show 2
Apr 20, 20035.822 min
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 when she is wrong lead to a lot of the prob
S4 E18Reese's Party
Apr 27, 20037.222 min
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 operation in the garage. All Reese and Malc
S4 E19Future Malcolm
May 4, 20037.522 min
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 jo
S4 E20Baby (1)
May 11, 20037.723 min
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 baby's planned delivery is his birthday
S4 E21Baby (2)
May 18, 20038.322 min
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.
S4 E22Day Care
May 18, 20037.322 min
With the arrival of their fifth child, Lois and Hal search for a "creative" daycare solution.