Emma Swan finds out that she is the girl who is responsible from saving both the Real World and the Enchanted Forest. Before she knew this, she was just a bail bonds collector. She is Henry's mother, however, not biologically.
Emma: What are they now?
Hook: A reminder that all sins can be forgiven when someone loves you and I was absolutely wrong before. I love you Emma Swann, no matter what you've done.
Emma: Oh, kid. You've got problems.
Henry: Yup and you're going to fix them.