In a new preview for “Running Man,” the holidays get a little spookier than usual during this week’s Christmas special!

After surprising the cast members with a festive Christmas party, the “Running Man” staff will gift them with an even bigger surprise—an unexpected horror special.

The newly released clip of the upcoming “Nightmare Before Christmas” episode shows the cast members screaming in terror and clinging to one another for dear life as they flee down the darkened corridors of an empty school.

The festive and frightening special will air on December 24 at 6:20 p.m. KST. In the meantime, check out the preview below!

Also, catch the latest episode of “Running Man” here:

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