5. Malcolm Babysits

When bugs take over the house due to Dewey stashing old food inside the walls, the whole family is forced to live in a trailer owned by Lois' coworker, Craig, while their house is being fumigated. However, Malcolm ends up spending more time at the home of an upper-middle-class family who has hired him as their babysitter, which he prefers to staying with his family, but he soon learns that the parents have been secretly videotaping him to judge his bad behavior. He later blackmails the family with evidence of their affairs and illegal practices to leave him alone, and he quits. Meanwhile, Francis finds the corpse of a missing janitor in the basement of Marlin Academy, and teams up with his friends to give him a Norse funeral, which goes wrong when the corpse blows up in a fiery explosion.