Once Upon a Time Season 3 Premiere 2013 “Heart of the Truest Believer” September 29, 2013 News, Once Upon a Time Once Upon a Time “Heart of the Truest Believer” Season 3 episode 1 airs Sunday, September 29, 2013 at 8pm on ABC. Season Premiere. Synopsis: Once Upon a Time Season 3 Episode 1 “Heart of the Truest Believer” – As Emma, Mary Margaret, David, Regina, Mr. Gold and Hook enter Neverland to search for a kidnapped Henry, they’re greeted by a school of not-to-friendly mermaids who threaten to end their search before it begins; Henry finds himself on the run from the Lost Boys with another escapee from Peter Pan’s encampment; and Neal, recovering from his wounds, travels through the Enchanted Forest with Mulan in an attempt to learn the fates of Emma and Henry, on the Season Premiere of “Once Upon a Time,” SUNDAY, SEPTEMBER 29 (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, Lana Parrilla as Evil Queen/Regina, Josh Dallas as Prince Charming/David, Emilie de Ravin as Belle, Jared S. Gilmore as Henry Mills, Meghan Ory as Red Riding Hood/Ruby, and Robert Carlyle as Rumplestiltskin/Mr. Gold. Click Any Photo Below To Enlarge Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)