The film's plot revolves around the return of the Wicked Queen, who is unexpectedly brought back to life during Christmas and casts an evil spell that freezes the entire land.
Unknown to all, the Wicked Queen had been standing frozen near her abandoned castle all that time, and right then she is freed when it happens that the large block of ice in which she was trapped melts.
Returning to her castle, the revived Queen finds her Magic Mirror still in place and learns that now are two Snow Whites more beautiful than her.
Furious, she conjures a magical ice storm that freezes the entire kingdom but barely misses the second Snow White.
Next she summons seven demons to fight the giants, but then Hicker begins hiccuping so strongly that he causes an earthquake and the castle collapses.
With the Queen's final demise, the curse she has placed over the kingdom is broken, causing the land to thaw and the ice statues to revert to people, just in time for Christmas Eve.
Filmation wanted to start making sequel to classic stories, and they chose "Snow White" since no one had made a film exploring what happened after the ending, and the format since it was easy to sell a Christmas special at the time.
In both films, the seven friends include a grim and taciturn individual who, despite seemingly not liking Snow White, ultimately leads the charge against the Queen who has disguised herself as an old woman and whom they chase up a cliff.