Storybooks - S5.E14

Waldo shows up in the store looking for a ""Robin Hood"" storybook that has a terrible spell in it. Muffy happens to be reading it and accidentally activates the magic spell and ends up in the land of make-believe thinking she's Robin Hood. So Jeff, Jodie, Sam and Waldo go to the land of make believe to protect her until the spell wore off facing the evil sheriff.