A spy after nuclear secrets poisons a scientist to obtain the information. But when scientist collapses on the street, he discreetly passes the chip on to Ellie. Then the ...

Debra signs up for charity work and signs up Ray for an hour of charity at the hospital. He is reluctant but goes. Turns out the patients enjoy his humor and sports infor ...

Malcolm has the chance of a highly lucrative career in computer software, but the offer is blocked by his parents, who have higher goals in mind for him - as the first US ...

Francis has made it through a year of sobriety and he invites the family to his AA meeting, until Lois discovers that he has invited her there to place his problems on he ...

Francis shows up for his 21st birthday anticipating Hal will come through on a promise to go on a motorcycle road trip; meanwhile, the boys are trapped in the house while ...

Strapped for cash for the holidays, Hal and Lois decide that all Christmas gifts this year should be handmade. But when Hal sees the thoughtful, quality gifts the boys ma ...

Hal Wilkerson's trial is underway and the prosecution has a strong case against him. What's even worse is that the agent who was going to save him, testifies against him. ...

When Reese visits Beth at her house, he finds out that she's cheating on him with Malcolm. Distraught, he runs away and joins the Army with the other broken hearted males ...

Reese inadvertently perfects Malcolm and Stevie's science experiment, but can't remember how he did it; Dewey dreams up reasons for people to buy the candy he's selling d ...

Polly begins dating Abe and Craig; Malcolm refuses to believe in the power of Dewey's lucky shirt; the ranch hands make fun of Francis; and Lois takes the kids to a baseb ...

Lois has a dispute with Hal and the boys' favorite restaurant; Malcolm clicks with his girlfriend's family to the point where he forgets about his girlfriend; and Francis ...

As Christmas approaches, a layoff at work prompts Hal to make money selling Christmas trees; Francis and Piama's peaceful holiday comes to a crashing end when Otto's Germ ...

Malcolm's teacher forces him to secretly record Reese as he divulges his innermost secrets; Francis strikes back after a critic writes a scathing review about the hotel; ...

It's another family Thanksgiving, as Reese cons Hal and Dewey into helping him out with the cooking. Francis and Piama are also there, but they're not even speaking to ea ...

The family travel to Las Vegas when Hal has a dream about hitting the jackpot on a slot machine; Reese and Dewey enter their rabbit into an obese-rabbit competition; Lois ...

Lois continues with her strenuous labor, as friends and family all panic around her. ...

Hal takes the boys to a bridal show; Lois' mother wants to move in with the family; Malcolm gets an offer to enroll in a prestigious private school. ...

Malcolm meets a chess-playing bum who could be him in 30 years; Lois can't figure out why she's gaining weight; Dewey attributes his bizarre behavior to obeying requests ...

Malcolm competes in an academic octathlon but hates the intensity of the other competitors; Hal fights to regain Dewey's love; Reese tries to get out of going to a formal ...

When Lois' mother visits, she trips on a leaf and decides to sue Hal and Lois...just as Lois finds out she's pregnant again. ...

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 ...

Malcolm is fed up with the fact that every time he complains, something wrong happens. He has recently got kicked off the basketball team and vows not to complain anymore ...

Malcolm stops thinking in order to go out with a very dumb girl. Hal wins some money, and rents a steamroller. ...

Malcolm and his family goes to Hals father's house for a reunion. The family doesn't like Lois. Reese and Dewey try to get in their grandfathers will. Malcolm's grandfath ...

The family goes to the zoo. Malcolm is going through a crisis, and he and Dewey find themselves in a unfortunate situation. Reese angers an animal at the zoo. Hal is jeal ...

Craig hires an evil helper monkey. Reese catches a burglar and decides that he would like to try being in law enforcement. Francis and Piama are forced to leave Alaska. ...

Malcolm and the rest of the Krelboynes are forced to re-join the rest of the school with disastrous results. Dewey is stuck at home with chicken pox and builds a dominoes ...

Hal has his friends over to his house for their poker game, and tries to impress them in the process. Reese convinces two girls that Stevie has a fatal illness. Malcolm d ...

Hal has finally made a deal with Ed for the boys to have their own computer. Unfortunately, it doesn't come without favors. They find out that Ed is a philanderer and has ...

It's Hal's birthday and Lois has Francis come home to celebrate it with the family as a surprise. The surprise is on her and the rest of the family as Francis comes home ...

The family learns that Tiger Woods is half Asian. Two storylines emerge from this. One is the desire to spread awareness of Tiger Woods Asian half. The other is that the ...