"Bart Sells His Soul" (production code 3F02) starts with Bart getting in trouble at church for switching the hymns. Milhouse rats him out, and they both get punished. While they clean the organ pipes, Bart and Milhouse argue about the existence of souls. Convinced about the non-existence of souls, Bart sells his soul to Milhouse for ten bucks in the form of a paper with the words "Bart Simpson's soul." Soon, Bart realizes that he has actually sold his soul and vows to get it back. Turns out Milhouse sold Bart's soul to the Comic Book Guy who had already sold Bart's soul. Bart returns home and earnestly prays for his soul. As if in God's answer to the prayer, the soul paper floats down, but it turns out that Lisa had bought the soul.