A sleeping prince. An alluring conversation between pirate and queen. An Enchanted Forest jail cell exploration.

We'll be treated to all three of these scenes on Sunday's Once Upon a Time midseason finale, as David's state is at the forefront of a debate between Gold and Regina. Over what, exactly? Watch this sneak peek for the answer:

Elsewhere, Hook and a certain royal villain will square off. But will they be on the same side? Check out the following seductive clip now:

Finally, Mary Margaret, Aurora and Emma have arrived. They are in Rumpelstiltskin's jail cell. Will it provide the answer they seek?

View another Once Upon a Time clip from the episode now and visit TV Fanatic Sunday night for our detailed review of the installment.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.