Once Upon a Time (2011)

S3E16 It's Not Easy Being Green

Zelena, holding Rumplestiltskin captive, dares Regina to a lethal duel, leaving the Evil Queen stunned when she reveals their blood relationship. Meanwhile, the townsfolk gather to mourn Neal's passing. In a flashback to Oz, a envious Zelena seeks the Wizard's help to travel to Fairy Tale Land after learning about her sister, Regina, and that Rumplestiltskin is mentoring her to become a formidable power.