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.

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

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

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

Five teams made up of an expert pumpkin carver, a cake artist and a sugar master create amazing and tasty Halloween-themed displays that mix fear and romance in a depiction of a zombie dating show. The special guest judge is Fear the Walking Dead's Colman Domingo.

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

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

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

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.

Six teams made up of an expert pumpkin carver, a cake artist and a sugar master create mind-blowing and yummy Halloween-themed displays that depict the horror of being trapped in a nightmare and unable to wake up. Elvira, Mistress of the Dark, serves as guest judge.

In the first of three qualifying rounds, host Jonathan Bennett challenges teams of pumpkin carvers, cake decorators and sugar artists to create spooky displays based on the terrifying inspirations behind beloved fairy tales. Judges Shinmin Li and Aarti Sequeria decide which two teams advance to the next round and which team's fairy tale comes to an end.

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

Season 5 ends with the final two teams creating terrifying displays with an undead dinner party theme. Cassandra Peterson (aka Elvira) joins the judging panel to help determine the winner of the $50,000 grand prize.

The three teams made up of an expert pumpkin carver, a cake artist and a sugar master create stunning and scrumptious Halloween-themed displays that show how well-known holiday mascots like Santa and the Easter Bunny go trick-or-treating. Actor Jackson Rathbone from the Twilight saga movies serves as guest judge.

With just four teams left, host Jonathan Bennett invites them to a killer dance party where ravenous zombies have brain-inspired treats on the menu! Judges Shinmin Li and Aarti Sequeira decide which three teams move into the semi-finals and which team's chances are dead on arrival.

Four teams made up of an expert pumpkin carver, a cake artist and a sugar master go into battle to imagine their most terrifyingly tasty displays yet: an attack by a swarm. The special guest judge is horror-comedy actress Harley Quinn Smith from the films Tusk! and Yoga Hosers.

Host Jonathan Bennett tasks the six remaining teams of pumpkin carvers, cake decorators and sugar artists with creating a killer display featuring a clown terrorizing an innocent victim at the scariest carnival ever seen! Judges Shinmin Li and Aarti Sequeria have the last laugh as they chose the creepiest clown.

The theme is vampires.

The five remaining teams face their hardest flavor challenge yet as host Jonathan Bennett asks them to make over a classic Hollywood monster. Judges Shinmin Li and Aarti Sequeira evaluate their devious designs before sending one team home screaming.

Host Jonathan Bennett gets a little wicked with his flavors as the three teams of semi-finalists struggle to incorporate garlic into their tasting element while creating a vampire vs. Halloween heavyweight display. Judges Shinmin Li and Aarti Sequeria announce whose pungent piece is worthy of a spot in the finale.

Four teams remain for the challenge of creating a mutated and terrifying hybrid horror.

Five remaining teams made up of an expert pumpkin carver, cake decorator and sugar artist go to battle to create delicious Halloween displays that capture the scariest haunted roadside motel ever seen. At the end of the battle, one team will be eliminated with help from special guest judge Sid Haig, actor and horror icon who has appeared in several hits, including Halloween and The Devil's Rejects.

In the second qualifying round, host Jonathan Bennett asks three new teams to conjure up displays inspired by the classic film, The Exorcist. Then, the teams showcase the ultimate battle between good vs. evil in hopes that judges Shinmin Li and Aarti Sequeria choose the right side.