Emma's darkness is tested while she has an encounter with the first "dark one". The history of Excalibur is revealed.

Movie rating: 8.2 / 10 (1347)

Directed by: Edward Kitsis - Romeo Tirone - Adam Horowitz - Jane Espenson

Writer credits: Edward Kitsis - Edward Kitsis - Adam Horowitz

Cast: Ginnifer Goodwin - Jennifer Morrison - Lana Parrilla - Josh Dallas - Emilie de Ravin

AKA: Nimue, Once Upon a Time, OUaT, C'era una volta, Érase una vez

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