Oh, that moment in 'Once Upon a Time' was such a game-changer! Emma Swan's transformation into the Dark One happens in Season 5, Episode 1, titled 'The Dark Swan.' It's this intense, visually stunning episode where she takes on the Darkness to save Captain Hook, and the whole vibe shifts. The way they filmed her with those smoky, golden eyes and the dramatic costume change? Iconic.
I love how the show played with her internal struggle afterward—she’s still Emma, but the Darkness keeps whispering. It reminded me of when Regina grappled with her past, but with this fresh, heartbreaking twist. The way Jennifer Morrison portrayed that duality? Chef’s kiss. Honestly, that arc made Season 5 one of my favorites, even if it got wild later with Camelot and all.