Watch Once Upon a Time Season 1 Episode 17 online via TV Fanatic with over 6 options to watch the Once Upon a Time S1E17 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and Verizon On Demand.
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During her search for Mary Margaret, Emma is kidnapped by a mad man with an affinity for hats. Who planted the key in Mary Margaret's cell is revealed on Once Upon a Time.