Eight-year-old Dorothy and her loyal dog find themselves whisked away to the fantastical Galaxy of Oz in the year 2060. Once the tyrannical Gloomhilda ruled over the Galaxy with an iron fist until she was overthrown by the benevolent Dr. Oz. Now, with an army at her command, Gloomhilda plots to reclaim her throne. But her plans are thwarted by Dorothy's arrival. Though Gloomhilda may return, Dr. Oz has a master plan to vanquish her evil for good. The key lies in three fabled crystals of love, wisdom, and courage that have been lost for centuries in different corners of the Galaxy. Whoever possesses all three will reign supreme over Oz for all eternity. Dr. Oz enlists the help of Dorothy and a motley crew of heroes to scour the far reaches of the universe in search of these legendary crystals.