When did Once Upon a Time Season 4 Episode 20 air?
Once Upon a Time Season 4 Episode 20 aired on April 26, 2015.


Magic is coming.
There is a town in Maine where every story book character you've ever known is trapped between two worlds, victims of a powerful curse. Only one knows the truth and only one can break the spell. Emma Swan is a 28-year-old bail bonds collector who has been supporting herself since she was abandoned as a baby. Things change for her when her son Henry, whom she abandoned years ago, finds her and asks for her help explaining that she is from a different world where she is Snow White's missing daughter.

Emma’s potential for darkness is looming over everyone, but when Emma realizes Maleficent’s daughter Lily is in fact her closest friend from her foster care days, she resolves to find Lily and reunite her with her mother. Regina joins forces with Emma and together they set out to track down Lily and to warn Robin about Zelena. However, neither of them is prepared for the harsh realities they’ll encounter in the outside world. Meanwhile, in Storybrooke, Gold faces a crisis involving Belle. In a foster care flashback, things are looking up for young Emma with her new family until Lily’s appearance threatens to destabilize everything.
Direct answers for episode-level questions and details.
Once Upon a Time Season 4 Episode 20 aired on April 26, 2015.
This episode runs for approximately 43 minutes.
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