Another seven years, and even with the Devil still trapped and toiling away, a new crisis arises. This time, holidays from cultures across the world are colliding. A creature with no knowledge or fear of jack o'lanterns stalks the foggy streets of San Francisco.

With the boundaries between folklore traditions fading and fraying at the edges, Halloween Jack, his family, and his friends must determine what's going on and how to put things right. Or, will they make things worse by being a bit too clever for their own good by half?

Most importantly, who will rule over New Year's traditions on each side of the Pacific Ocean?