The Venture family travels to New York City, where Dr. Venture is presenting his newest invention to the United Nations. They are pursued by a ninja intent on acquiring the device, and by Dr. Venture's archenemy The Monarch.

Dr. Venture is a bit behind on his shopping, but he's excited about hosting his annual Christmas Eve shindig. Brock turns out to have some sentimental Yuletide traditions. Dean and Hank, who still believe in Santa Claus, accidentally unlock a magical demon who threatens to ruin Dr. Venture's annual Christmas party and murder all his guests. Dr. Billy Quizboy and Mr. White hit on Triana, Dr. Orpheus' underage daughter. Meanwhile, The Monarch plans the ultimate gift for Dr. Girlfriend--the destruction of the entire Venture Compound.

See the Venture Family as you’ve never seen them before: in a 15-minute documentary-style animated special. Follow the meteoric rise, the equally meteoric fall, and the decidedly un-meteor-like second coming of the most important band Hank Venture, Dermott Fitctel and H.E.L.P.eR. robot have ever been in: Shallow Gravy. If you’re hungry for rock, then open wide, because here comes a ladle of heavy metal fire and metaphoric meat drippings.

Only Team Venture knows how to put the very real, life-threatening element of danger back into Halloween.