While researching a paper about George Washington Carver in celebration of Black History Month, Steve uncovers a conspiracy that's been going on since the Civil War. When the curator of the Smithsonian Peanut Museum reaches out to tell Steve the truth, he's mysteriously murdered, and Steve and Stan are tracked by a secret society that will stop at nothing to keep this scandalous secret of American history.

When a bully harasses Chris, Peter goes to his defense, but ends up beating him up. Peter realizes bullying is fun and begins to bully everyone in the house. Finally, Chris stands up to Peter and beats him senseless. Meanwhile, Stewie goes out without sunscreen and becomes obsessed with getting a tan. After Brian leaves him in the tanning booth for six hours, Stewie gets sunburned and fears he has cancer. While waiting for the results of his cancer screening, Stewie begins to live his life as if he had only days to live and drives Brian crazy with his demands.

Eccentric documentary filmmaker Declan Desmond returns with his new film "Growing up Springfield" in which various characters in The Simpsons are interviewed. Homer and family pretend to be rich on the documentary, until Mr. Burns catches them in his summer home.

Another day, another Porsche, but will Jeremy be able to tell the difference between this new 911 Turbo and the old one? He also drives the Brabus S Biturbo Mercedes SL. James and Richard try to turn a Reliant Robin into a space shuttle. Simon Pegg is the Star in a Reasonably Priced Car.