Dorothy Gale lives with her Aunt Em and Uncle Henry. She has a pet dog named Toto. When Miss Gulch takes Toto away, Toto escapes and runs back to Dorothy. Soon, she runs away from home, and runs into the fake psychic, Professor Marvel. He tells Dorothy that Her Auntie Em is sick, so Dorothy and Toto run back home, but a tornado comes and takes Dorothy and Toto to Oz, a place somewhere over the rainbow. She lands in Munchkinland. Her house accidentally lands on the Wicked Witch of the West's sister and Dorothy magically inherits the pair of ruby slippers that were on her feet. Glinda, the Good Witch of the North, tells Dorothy to follow the Yellow Brick Road to see the Wizard so she can get back home. Along the way, she befriends Scarecrow, Tinman, and Lion. They are also seeking help from the Wizard because the Scarecrow needs a brain, Tinman needs a heart, and Lion needs courage.

At head of title on screen: Metro-Goldwyn Mayer presents Based on the novel "The wonderful wizard of Oz" by L. Frank Baum. "Standard version presented in a format preserving the aspect ratio of its original theatrical exhibition." Disc 1. The movie with commentary by historian John Fricke ; restoration featurette ; illustrated video storybook ; supporting cast profile roundup. Disc 2. Nearly 3 hours of wonderful wizardry about this movie classic! ; The life and times of original author L. Frank Baum ; documentary profile of director Victor Fleming ; the tv-movie special "The Dreamer of Oz" starring John Ritter, Annette O'Toole and Rue McClanahan ; the 2007 Hollywood Walk of Fame salute to the Munchkins ; two pre-1939 Oz shorts, "The wonderful wizard of Oz" (1910) and "The wizard of Oz" (1933).