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.

Stan sets Bullock up with a friend of Francine's but, dreading to hear Francine tell him 'I told you so,' Stan goes to great lengths to make sure the date goes well by getting everyone drunk. Unfortunately, Bullock accidentally kills the woman and Stan covers it up and then frames Francine so that she'll stop asking questions.