Five teams (three members each) compete by making Halloween displays inspired by a witch and by a scary haunted house.

The four remaining teams of three compete by making edible displays inspired by twisted fairy tales.

Three remaining teams begin the epic battle between Zombies and Vampires.

Two teams create Halloween displays of the Underworld; Halloween Wars champion chosen.

In the first of four battles, five teams made up of a pumpkin carving expert, cake artist, and candy craftsman must combine their arts to create the most terrifying clown imaginable. At the end of the battle, one team will be eliminated.

The theme is vampires.

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Five teams go head to head in the first of four battles. To start off, they must create displays depicting a scene from a zombie prom.

The four remaining teams make a twisted version of a classic fairy tale.

The three remaining teams create a display of swamp creatures on the rampage.

It all comes down to two teams and a $50,000 prize when the contestants are told to capture a nightmare for their last display.

Season 4 begins when five teams are presented with the challenge of creating a terrifying haunted farm.

The four remaining teams are given the challenge of creating a foreboding forest. Film producer Adi Shankar is the guest judge.

The three remaining teams must depict an epic battle between mummies and werewolves, in a challenge featuring guest judge Francia Raisa.

Season 4 comes to a close as the final two teams compete to create terrifying Halloween-themed displays that capture the twisted, demonic world of a haunted carnival.