Once_upon_a_time_4x21 -

: The episode focuses heavily on the reunion between Maleficent and her daughter, Lily. Lily struggles with her "darkness" and her desire for revenge against the Charmings.

: Regina faces a major crossroads regarding her "Happy Ending" and her relationship with Robin Hood and Zelena. Once_upon_a_time_4x21

: Isaac (The Author) works with Rumplestiltskin to write a new story that would flip the roles of heroes and villains, setting the stage for the alternate reality seen in the finale. : The episode focuses heavily on the reunion