Where To Stream Once Upon a Time Season 5 Episode 5

Emma discovers how Merlin was imprisoned in a tree, and must take drastic steps to acquire the one necessary ingredient... steps that will lead her into darkness. Meanwhile, in the current Storybrooke, the townspeople decide to have a block party to lift everyone's hopes. Henry turns to Emma for help find Violet's missing horse, and Regina and the others learn that Emma has Excalibur.