'Once Upon A Time' Season 4 Trailer Teases 'Frozen' Storyline (VIDEO)

By Nick Roman ·

Once Upon A Time Season 4 is just on the horizon, and with it comes a storyline that brings the world of Frozen to Storybrooke.

In this teaser trailer, we get a glimpse at Frozen's Elsa (Georgina Haig) as she strolls around Storybrooke, leaving a trail of frost wherever she goes. It's an ominous video that suggests trouble ahead for the citizens of Storybrooke, as Regina (Lana Parrilla) lets out a bemused "Here we go again...," while Emma (Jennifer Morrison) can only muster up an exasperated "Really?" It's a clip that helps set the tone for what we can expect from the Frozen-fueled fourth season of Once Upon A Time. Watch the full teaser trailer below via The Hollywood Reporter:

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