Arthur notices Merlin acting strange and later that week on a hunting trip everything changes. And after that more unfolds.

Merlin has been having nightmares brought on by his traumatic past. Arthur and the rest of the Knights of Camelot notice that something is amiss and are determined to get to the bottom of it. But when an old enemy shows up and forces Merlin to relive his past and possibly reveal his secrets, what will become of him? What will become of Camelot?

An accidental reveal of magic and the scars Merlin has obtained I do not own Merlin or any of the characters just the story