A new promo for the fourth season of ABC's Once Upon a Time has been released, this one emphasizing Frozen's Queen Elsa (Georgina Haig) coming in to town.

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The promo (seen below) features Elsa walking through the town of Storybrooke, leaving behind an icy trail with every step she takes.

"This September, winter comes early," the voiceover announces, "when the town of Storybrooke gets frozen over."

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The trailer features many of the show's main characters, including Mr. Gold/Rumplestiltskin (Robert Carlyle), Snow/Mary Margaret (Ginnifer Goodwin), Charming/David (Josh Dallas), Hook (Colin O'Donoghue), Emma Swan (Jennifer Morrison) and Regina (Lana Parrilla).

While most of the characters seem armed and at the ready to attack the new intruder, Emma and Regina are much more sarcastic in their responses.

"Here we go again," Regina says, flatly.

"Really?!" Emma adds, watching Elsa waltz in to town.

Once Upon a Time has featured several characters who have become villains, including Peter Pan (Robbie Kay) and the Wicked Witch/Zelena (Rebecca Mader). Elsa has not been announced to be "the villain" of the new season, but based on the characters' reactions, they won't exactly be friendly towards her.

Elsa will be joined by several of her fellow Frozen characters, including Anna (Elizabeth Lail), Kristoff (Scott Michael Foster), Hans (Tyler Jacob Moore) and Pabbie, the elder troll (voiced by John Rhys-Davies).

Once Upon a Time Season 4 is set to premiere Sunday, Sept. 28 at 8 p.m ET/PT on ABC.

Watch the promo for the new season here:

Tags: Once Upon A Time television ABC