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.

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.

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.

When Dewey's annual candy selling event for school comes up, he uses the excuse of "these bars help support america" to sell them. Malcolm and Stevie attempt a science experiment, and are shocked when Reese begs to help.

The Buseys disappear after Dewey leaves the special-needs class; Hal becomes the leader of a group of brainless bodybuilders.

When Lois catches the boys vandalizing a trashy billboard for a strip club, Malcolm alters the vandalism into a women's rights protest, which sparks a colossal media circus. In no time, feminists, conservative religious groups and national new reporters descend on the scene. After Hal grants a TV interview, a woman from his past turns up at the faux protest; and Reese, inspired by the giant billboard stripper who comes to life in his dreams, gives an impassioned speech about the objectification of women.

Lois thinks the new babysitter she found for Jamie is perfect... until she starts driving Lois crazy. Meanwhile, Reese starts getting picked on by the teacher when he and Malcolm are in the same class. However, Malcolm decides to defend him.