frozen once upon a time season 4 elsa promo video 'Frozen' heads to 'Once Upon a Time' Season 4: Watch Elsa in StorybrookeIt’s about to get a lot colder in Storybrooke when the worlds of “Frozen” and “Once Upon a Time” collide for the ABC drama’s upcoming Season 4.

The Hollywood Reporter has an early look at ABC’s new on-air promo for the Disney crossover, which you can watch below. Your favorite fairy tale characters — including Rumpelstiltskin, Snow, Charming, Hook, Regina and Emma — prepare for the chilly new resident’s arrival.

Although you can’t see her face, Georgina Haig plays the “OUAT” live-action Elsa when the show returns on Sunday, Sept. 28 at 8 p.m. ET/PT on ABC.