Set after 3b in a peaceful Storybrooke where Regina is with Robin and Emma's fallen into a relationship with Hook. Shame about all that subtext that's rapidly threatening to become text.

In an act of desperation, Regina casts a spell that takes her back to the day Henry leaves for Boston. She wants to keep Emma from ever entering Storybrooke, but when she takes Henry's place, she finds herself completely unprepared for the woman who answers the door. Regina has a chance to do it all again, but no matter what, she can't escape one fact. All magic comes with a price.