Episode 104 of "Malcolm in the Middle"
s05e19 Experiment
Title: Experiment
Original Air Date: 05/02/2004 on Fox
Director: Bryan Cranston
Writer: Alex Reid
Guest Stars: Susan Leslie (Tina), Gil Glasgow (Fred), Carlie Westerman (Little Girl), Cathrine Grace (Lady), Justin Martin (Pete), Regan Burns (Middle-Aged Man)
Plot Outline:
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.
