VIDEO: Sneak Peek - Emma Returns to Storybrooke on Next ONCE UPON A TIME

On the next episode of ABC's ONCE UPON A TIME titled 'Mother', Emma returns to Storybrooke to reunite Lily with Maleficent while Regina and Robin struggle to cope with the implications of Zelena's pregnancy.

When Gold's health takes a turn for the worse, Isaac looks to a new ally for help procuring the magic ink he needs to re-write history. In a Fairy Tale Land flashback, Cora returns from Wonderland to beg Regina's forgiveness on the anniversary of Daniel's murder. Cora vows to help her daughter find true love, but Regina remains suspicious of her mother's intentions.

The episode airs Sunday, May 3 at 8/7c on ABC. Get a sneak peek below courtesy of TVGuide!

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