Malcolm in the Middle (2000)

S3E20 Jury Duty

Lois is called for jury duty, and Hal becomes curious about the details of her case. At the same time, Malcolm and Reese can't stop talking about the time they saw Stevie’s mom without clothes, boasting about it to their friends. They also decide to take Dewey on an adventure into the sewers, but things take a turn when they find themselves lost in the dark, twisting tunnels.