Follows Elphaba, the future Wicked Witch of the West and her relationship with Glinda, the Good Witch of the North. The second of a two-part feature film adaptation of the Broadway musical.

After challenging the Wizard's totalitarian regime in Oz, Elphaba must grapple with her identity as the "Wicked Witch of the West". Meanwhile, the Wizard has given Glinda the title "Glinda the Good" and a public status as the nation's defender against Elphaba. The two witches must make decisions that seal their fates in this second musical installment.