"Once Upon a Time" season 4, episode 5 spoilers are here and it seems the search for Snow Queen begins, as the runaway orphan Lily will find sympathy from Emma.

Plenty of "Once Upon a Time" season 4, episode 5 spoilers are revealed in the official synopsis released by ABC which reads: "Regina will reluctantly team up with Emma to search for the Snow Queen after Sidney, who is once again Regina's prisoner in the mirror, discovers her whereabouts and agrees to lead her to the location.

"With Belle babysitting baby Neal, a nervous Mary Margaret and David are going to prepare for their first date night away from their child and find themselves on a mission to track down Will Scarlet, who has escaped from the town jail, and Elsa will see Anna in the Storybrooke woods," it added, per Hypable.

"In the meantime, back in the past, young Emma finds herself a kindred spirit when she befriends a girl who, like her, is a runaway orphan," the synopsis added.

Hypable noted that fans are very curious as to the connection between Emma and the Snow Queen, citing a theory that the Snow Queen was Emma's foster mother, "unless the orphan girl was somehow connected to the Snow Queen - another of her foster children, perhaps, or someone else connected to Arendelle?"

The website, however, is wondering just what the role The Mirror has to play in unraveling the mystery.

Guest stars will include Elizabeth Mitchell as Snow Queen, Giancarlo Esposito as Sidney/Magic Mirror, Oliver Rice as King Arendelle, Pascale Hutton as Queen Arendelle, Georgina Haig as Elsa, Elizabeth Lail as Anna, Nicole Munoz as Lily, Barclay Hope as Lily's father, Anson Hibbert as policeman, Kelly-Ruth Mercier as manager, Abby Rose as the young Emma, and Ilias Webb as Kevin, according to the "Once Upon a Time" season 4, episode 5 spoilers from Hollywood Hills.