See two scenes from Once Upon a Time‘s next episode, “Manhattan.” Regina and Cora make plans while Gold, Emma and Henry search for Bae.

The first two sneak peeks from the Once Upon a Time episode airing Sunday have been released! This is shaping up to be one of the biggest episodes of the season, poised to answer one of the show’s biggest mysteries: who is Rumpelstiltskin’s son Bae?

See this clip from the episode, which shows Emma, Gold and Henry in Manhattan, searching for Bae. They’ve tracked down the building and buzz the apartment – but then the guy takes off running, and Gold cashes in his favour:

Speaking about this confrontation, Kitsis has teased to EW that, “I would say that ‘Manhattan’ is going to be the showdown that everyone wants to [see]. Emma is going to be dealing with a lot of emotional baggage [in the next few episodes].”

And in the second sneak peek, Hook, Cora and Regina look through Belle’s library to find Rumpelstiltskin’s dagger. Instead, Cora finds a map. Will it lead them to the dagger?

The working theory seems to be that Bae is in fact Neal Cassidy (Michael Raymond-James), making Rumpelstiltskin Henry’s grandfather (even though the show has previously suggested that Rumpel is in fact not Bae’s biological father). That would certainly be convenient, considering that Gold dragged Emma along on this quest – and Emma in turn decided to take Henry with her.

Would you like to see this further connection between the characters, or is it too convenient? Making Rumpelstiltskin consider Henry, Emma, Snow and Charming as his family might make him more likely to take their side in the future, maybe joining them in an upcoming fight against Cora and Regina. We’ll have to wait and see!

Once Upon a Time 2×14 “Manhattan” airs Sunday at 8/7c on ABC.