VIDEO: Sneak Peek - 'Best Laid Plans' Episode of ONCE UPON A TIME

On the next episode of ABC's ONCE UPON A TIME titled "Best Laid Plans" - how far would you go to protect your loved ones? A revelation that will destroy a family next Sunday on ABC.

Master storytellers Edward Kitsis and Adam Horowitz ("Lost," "Tron: Legacy") invite everyone to join the members of Storybrooke as they try to discover why Zelena wants Snow White's baby. The battle between evil and wicked continues as Henry's life is threatened. Will Glinda be able to save them?

"Once Upon a Time" stars Ginnifer Goodwin as Snow White/Mary Margaret, Jennifer Morrison as Emma Swan, Lana Parrilla as the Evil Queen/Regina, Josh Dallas as Prince Charming/David, Emilie de Ravin as Belle, Colin O'Donoghue as Hook, Michael Raymond-James as Baelfire/Neal Cassidy, Jared S. Gilmore as Henry Mills andRobert Carlyle as Rumplestiltskin/Mr. Gold. Rebecca Mader guest stars as Zelena.