Television November 07, 2014 'Once Upon a Time' Sneak Peek! Emma Uses Her Powers to Capture the Snow Queen “Extra” has an exclusive sneak peek at Sunday's “Once Upon a Time” episode! In the clip, Emma, Elsa and David catch up to the Snow Queen, and Emma uses her powers to put the icy villain in shackles. Watch! Catch “Once Upon a Time” on Sunday at 8 PM on ABC. #Television #TrendingStories More First Look! Georgina Haig as 'Frozen's' Elsa in 'Once Upon a Time' 'Once Upon a Time' Star Ginnifer Goodwin on Being a New Mom On and Off-Screen Is 'Frozen's' Elsa Getting a 'Once Upon a Time' Makeover This Season?