DAVID - AKA JOHN DOE - MUST CHOOSE BETWEEN STAYING WITH KATHRYN OR MARY MARGARET, AND PRINCE CHARMING ENCOUNTERS A LIFE-CHANGING EVENT THAT WILL FOREVER ALTER HIS DESTINY, ON ABC'S "ONCE UPON A TIME"

"The Shepherd" - David - aka John Doe - must choose between staying with Kathryn or leaving her to be with Mary Margaret, with whom he's fallen deeply, and inexplicably, in love; and Emma catches Sheriff Graham in a lie. Meanwhile, back in the fairytale world that was, Prince Charming is about to encounter a life-changing event that will forever alter his destiny, on "Once Upon a Time," SUNDAY, DECEMBER 4 (8:00-9:00 p.m., ET) on the ABC Television Network.

"Once Upon a Time" stars Ginnifer Goodwin as Snow White/Mary Margaret, Jennifer Morrison as Emma Swan, Robert Carlyle as Rumplestiltskin/Mr. Gold, Lana Parrilla as Evil Queen/Regina, Jared Gilmore as Henry Mills, Josh Dallas as Prince Charming/David and Raphael Sbarge as Jiminy Cricket/Archie Hopper.

Guest starring are Jamie Dornan as Sheriff Graham, Anastasia Griffith as Kathryn/regal blonde, David Anders as Dr. Whale, Alex Zahara as Midas/nobleman, Alan Dale as King George, Ian Butcher as burly knight, Gabrielle Rose as Ruth/peasant woman, Demord Dann as aide, Matthew MacCaull as knight no. 1 and Robert Maillet as Behemoth.

"The Shepherd" was written by Andrew Chambliss & Ian Goldberg and directed by Victor Nelli.

"Once Upon a Time" is broadcast in 720 Progressive (720P), ABC's selected HDTV format with a 5.1 channel surround sound. A TV parental guideline will be assigned closer to the airdate.

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