First Look at Frozen on Once Upon a Time: Find Out What Elsa and Anna Are Up to!

The first footage of the Disney animated hit's beloved sister duo was screened for lucky fans at the ABC series' Comic-Con panel on Saturday

Ballroom 20 was hit with a cold front. And the audience loved it.

San Diego Comic-Con was taken over by Once Upon a Time's creators, Adam Horowitz and Eddy Kitsis, as well its its stars, on Saturday, where they dished on the upcoming fourth season of the ABC hit. Oh, and showed the first footage of Frozen's Elsa and Anna, played by Georgina Haig and Elizabeth Lail, on the show!

Unfortunately, the scene will not be released wide just yet (Sorry!), but we just so happened to be in the audience when the first look was screened (#notsuhumblebrag?) and we were totally fan-girling out with the rest of the crowd.

So what can fans expect to see from the Disney animated't hit fan-favorite sister duo? Warning, spoilers ahead!

In the scene, Elsa and Anna are visiting their parents' grave, where they place flowers down, and Elsa tells her sister, "Anna, they would be so proud of you."

She then says she has a surprise for her sister for her upcoming wedding. Yes, Anna and Kristoff are getting married!

Yet to make their OUAT debut as Frozen's beloved characters? Scott Michael Foster as Kristoff, and Lost's Elizabeth Mitchell as either the Original Snow Queen or Elsa and Anna's believed-to-be-dead mother. Plus, the show is currently casting the role of Prince Hans, Anna's treacherous former love interest.

Another familiar face, albeit not from Frozen, fans will be seeing in season four is Michael Socha as the Knave of Hearts, the only character from the short-lived spinoff Once Upon a Time in Wonderland who will be joining OUAT this season. Socha wasn't in San Diego, but made a quick appearance when Ginnifer Goodwin called in via Skype from the set.

OUAT returns Sunday, Sept. 28 on ABC.