The Evil Queen (Lana Parrilla) returns to the Enchanted Forest in Sunday's episode of Once Upon a Time, and she's more determined than ever to kill Snow White (Ginnifer Goodwin).

Fortunately, the Evil Queen is only back-in-black in flashbacks to heighten the dilemma (good) Regina faces when she and her friends reach the Underworld. The team of heroes quickly realizes that the Underworld is a twisted version of Storybrooke, populated by people with unfinished business - most of it with the core group that just showed up.

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However, while Regina isn't tempted to feed anyone any poisonous apples, a family reunion with her mother Cora (Barbara Hershey) will force her to make a tough decision between helping her friends and saving someone she loves (and herself).

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