Four cupcake bakers fight to win over the master of horror himself, Rob Zombie. The winner's vegan cupcakes will be the centerpiece of the grand opening of Rob Zombie's latest venture, a month-long haunted music attraction called the Great American Nightmare. It all begins with the high-stakes taste challenge, where the bakers must create a delicious cupcake out of foods so spicy they're rumored to cause nightmares!