The sign at the bus stop where Lily comes to see Emma, says Polar Star Coach Lines, the same bus company that brought Robin Hood and his family from Maine to New York in "Heart of Gold." The same bus company travels from Maine to Boston, and brings Henry and Violet from Maine to New York, in "Only You."
"Lily" is the nineteenth episode of Season Four of ABC's Once Upon a Time. It was written by Andrew Chambliss & Dana Horgan, and directed by Ralph Hemecker. It is the eighty-fifth episode of the series overall, and premiered on April 26, 2015.
"Best Laid Plans" is the sixteenth episode of Season Four of ABC's Once Upon a Time. It was written by Kalinda Vazquez & Jane Espenson, and directed by Ron Underwood. It is the eighty-second episode of the series overall, and premiered on March 29, 2015.
The Storybrooke beach scene where Elsa is reunited with her sister Anna was filmed on the Third Beach in Stanley Park in Vancouver, Canada, where production for Once Upon a Time was based.
"The Apprentice" is the fourth episode of Season Four of ABC's Once Upon a Time. It was written by Andrew Chambliss & Dana Horgan, and directed by Ralph Hemecker. It is the seventieth episode of the series overall, and premiered on October 19, 2014.
Mr. Gold, Belle, Elsa, Emma and Hook enter the barn of Zelena's farmhouse to get more information of how Elsa got into the urn and where Anna is. Mr. Gold asks Belle to give him the dagger, which is the fake one despite what everyone believes, and picks up some dirt from the ground. Mr. Gold explains that magic can change forms but it can never be completely destroyed and that this dirt can still neutralize any magic practitioner just like it did before. After they leave, Elsa comments that they still have nothing, but Emma encourages her, assuring her that they will find her sister