IN A SPECIAL ENHANCED EPISODE, MARY MARGARET VOWS TO KEEP RUMPLESTILTSKIN'S DAGGER AWAY FROM CORA AND REGINA, AND THE BLUE FAIRY OFFERS SNOW WHITE AN UNCONVENTIONAL SPELL THAT COULD HELP SAVE HER DYING MOTHER, THE QUEEN, ON ABC'S "ONCE UPON A TIME"

Special Enhanced Episode to Include On-Screen Facts and Back Story

Lesley Nicol (Mrs. Patmore on "Downton Abbey") Guest Stars as Queen Eva's Servant, Johanna

Get ready to view a special encore presentation of "Once Upon a Time," enhanced with on-screen facts and back story about one of the most talked about dramas on television. In the episode "The Queen is Dead," upon discovering Cora and Regina's plan to find and take possession of Rumplestiltskin's dagger, Mary Margaret, with the aid of David and Mother Superior, makes it her mission to find it first; and while Mr. Gold continues his quest in New York to reunite with son Bae, Hook devises a plan to rid himself of a crocodile. Meanwhile, in the fairytale land that was, the Blue Fairy offers Snow White an unconventional enchantment that could help save her dying mother, Queen Eva, on "Once Upon a Time," SUNDAY, MARCH 31 (8:00-9:00 p.m., ET) on the ABC Television Network. (Rebroadcast. OAD: 12/2/12)

The enhanced version of "Once Upon a Time" will include text on the screen and will "let viewers in" on clues within the show.

"Once Upon a Time" stars Ginnifer Goodwin as Snow White/Mary Margaret, Jennifer Morrison as Emma Swan, Lana Parrilla as Evil Queen/Regina, Josh Dallas as Prince Charming/David, Emilie de Ravin as Belle, Colin O'Donoghue as Hook, Jared S. Gilmore as Henry Mills, Meghan Ory as Red Riding Hood/Ruby, and Robert Carlyle as Rumplestiltskin/Mr. Gold.

Guest starring are Barbara Hershey as Cora, Keegan Connor Tracy as Mother Superior/Blue Fairy, Michael Raymond-James as Neal Cassidy, Bailee Madison as young Snow White, Lesley Nicol as Johanna, Rena Sofer as Eva, Duncan Ollerenshaw as royal doctor and Sonequa Martin-Green as Tamara.

"The Queen is Dead" was written by Daniel T. Thomsen & David H. Goodman and directed by Gwyneth Horder-Payton.

"Once Upon a Time" is broadcast in 720 Progressive (720P), ABC's selected HDTV format with a 5.1 channel surround sound. This program carries a TV-PG,V parental guideline.

For more information on "Once Upon a Time," visit ABC.com/Once