The sorceress Corina once managed to conquer the Emerald City. She drove away the Scarecrow of the Wise and declared herself queen of the Green Country. And first of all, Corina ordered all her subjects to take off their green glasses. What the townspeople saw horrified them! To prevent a riot, Corina decided to invite old Vardal, the former first minister of Goodwin, to the palace. But the old man refused to help the queen and ended up in prison. And then his granddaughter Lily, not a very beautiful, but very talented girl, went to her grandfather’s rescue. Will Lily be able to outwit the powerful sorceress and free Vardal from prison?