The Simpsons Season 27 Episode 9 Barthood Episode Title:Barthood.Episode Description:The story of Bart's life, spanning from the age of six to his adulthood, is told. Throughout the story, Bart learns that his shattered, yet lovable relationships with his father Homer, who looks down on him due to his laziness and negativity, and his little sister Lisa, who beats Bart at everything, help to shape who he truly is.