To help Sophie get her homework finished so they can go to a party, Emma wishes her sister could meet the great Medieval feminist Lady Isabella. Sophie and Adil end up back in the 13th century and discover Isabella is too busy doing housework to be a feminist. Believing her to be a wealthy princess, the Duke of Ellington, Isabella's macho cousin, wants to marry Sophie. Meanwhile, Emma must help another tyrant – her father – to clean up on her own.