Witches of East End: Season 2 Episode 13 (S02E13)

The adventures of Joanna Beauchamp and her two adult daughters Freya and Ingrid -- both of whom unknowingly are their family's next generation of witches -- who lead seemingly quiet, uneventful modern day lives in Long Island's secluded seaside town of East Haven. When Freya becomes engaged to a young, wealthy newcomer, a series of events forces Joanna to admit to her daughters they are, in fact, powerful and immortal witches.