ZELENA IS PLANNING A DARK SURPRISE FOR DAVID, AND IN THE FAIRY TALE LAND OF THE PAST, PRINCE CHARMING MUST HELP RAPUNZEL CONFRONT HER FEARS IN ORDER FOR HER TO BE FREE FROM HER TOWER IMPRISONMENT, ON ABC'S "ONCE UPON A TIME"

Rebecca Mader ("Lost") Guest Stars as Zelena

"The Tower" - While Emma, David, Regina and Hook continue their search for the Wicked Witch, she, in turn, is planning a dark surprise for David, and Zelena's prisoner is powerless under her watch as she plots her next course of action against the townspeople. Meanwhile, in the Fairy Tale Land that was in the previous year, Prince Charming stumbles upon Rapunzel, who is trapped inside a tower, and must help her confront her fears in order for her to be free.