This episode is available for viewing on Disney+ and detailed recaps can be found on the Once Upon a Time Wiki .
: His choice to kill Zelena reveals that despite his love for Belle, his "Dark One" nature and need for revenge still control him. [S3E20] Kansas
In the Once Upon a Time episode "" (Season 3, Episode 20), the story weaves between a high-stakes labor in Storybrooke and the origin of a legendary rivalry in Oz. It marks a turning point for Regina’s redemption and the climax of the Wicked Witch's plan. The Past: The Arrival of Dorothy This episode is available for viewing on Disney+
: Rather than killing Zelena, Regina chooses the path of a hero. She spares her sister’s life, hoping she can eventually find redemption, and locks her in a cell. It marks a turning point for Regina’s redemption
: Glinda tries to recruit Dorothy to join the Sisterhood of Witches. Fearing she is being replaced, Zelena attempts to kill Dorothy. However, Dorothy splashes her with a bucket of water, appearing to melt her.
: As the heroes storm the clock tower, Zelena uses her magic to freeze them. However, Regina is able to resist. Having finally found happiness and love (with Robin Hood), Regina is now able to wield Light Magic . She blasts Zelena with white light, stripping her of her pendant and her powers.
: While Zelena is powerless in her cell, Rumplestiltskin—seeking vengeance for the death of his son, Neal—breaks his promise to Belle. He sneaks into the cell and kills Zelena. As she dies, her body turns to stone and shatters, but her green life-force escapes, traveling to the clock tower and activating the time portal anyway. Key Character Developments