When Dean Pelton plans a "Sadie Hawkins" dance at Greendale, Britta plans a competing "Sophie B. Hawkins" dance in protest - but the joke is on Britta - who has confused Sophie B. Hawkins with Susan B. Anthony.

Jeff organizes a lovely holiday gathering at his apartment but Annie secretly invites Professor Cornwallis, to get in his good graces. When it becomes apparent that Professor Cornwallis intends to give them a bad grade on their joint History paper, the atmosphere quickly deteriorates and the group takes decisive action.