"Once Upon a Time": 10 Magical Teases For Season 5

All magic comes with a price, and in "Once Upon a Time" Season 5, Emma Swan (Jennifer Morrison) will be paying for her sacrifice from the Season 4 finale. She is the new Dark One, aka "Dark Swan," but that’s not the only storyline to watch when ABC’s heroes and villains return on September 27. There will be twists and turns all season, and here are 10 teases to prepare you for the ride. - Gina Carbone