Board Thread:Spoilers!/@comment-2153169-20170629021436/@comment-27229795-20170708132841

I have a theory of the episode:

Hyperion Heights is the name of the neighborhood that Henry, as well as the two new main characters being introduced, live in, and not the cursed place.

I think that in the episode, Lucy is trying to convince Henry, as well as the two new main characters, who are revealed to be characters from other worlds, to come with her to this new cursed town, which is not Seattle, but somewhere in Massachusetts.

The two new main characters introduced were taking by the Darkness possibly seen in the opening scene in The Final Battle, and lost their memories, just like Henry did.

I think the flashbacks are going to show what happened to Emma, Snow, Charming, Belle and Zelena, and also how Henry got to the Enchanted Forest.