Seven carvers must master the classic jack-o'-lantern; in the Quick Carve round, the competitors depict the struggle between good and evil; in the Big Carve round, each competitor is given one of the seven deadly sins to inspire their masterpiece.
Six pumpkin carvers tackle 3D sculpting challenges, starting with science experiments gone wrong in the Quick Carve round; things heat up in the Big Carve round when the competitors incorporate fire in 3D dioramas of trick-or-treating pumpkins.
Five expert pumpkin carvers face a spooky-structures challenge; the carvers stack pumpkins to create undead animals in a pet cemetery-themed Quick Carve round before moving on to make enormous prehistoric creatures in the Big Carve round.
The final four pumpkin carvers create terrifying monsters-in-law and larger-than-life monster party scenes using Atlantic Giant pumpkins; the winning carver will take home the $25,000 prize and bragging rights.
Jack-o'-lanterns are the name of the game as Alyson Hannigan challenges the seven carvers to create a cursed nursery rhyme triptych and a spooky underwater display.
Host Alyson Hannigan challenges the six competitors to create intricately carved 3D facial expressions and foods; the sweetest carvers get to stay, but judges Marc Evan and Terri Hardin give one carver the sour news to go home.
The five carvers have to create sky-high alien encounters using at least two stacked pumpkins, then host Alyson Hannigan challenges them to use at least 15 pumpkins to create an epic monster ride for judges Marc Evan and Terri Hardin.
In the finale, the remaining four carvers are challenged to create a doomsday hero and then incorporate that character into a 5-foot-tall scene depicting the end of the world and featuring world-famous Atlantic giant pumpkins.
Host Sunny Anderson asks seven carvers to create massive jack-o'-lanterns that tell a ghost story; then, each carver must create four nesting jack-o'-lanterns that are just as enchanting on their own as they are when they come together.
Each of the six carvers sculpt a 3D zombie in their likeness, complete with accessories that reflect their personality; the first team challenge requires creating a giant haunted house using a minimum of 15 pumpkins.
Sunny challenges the carvers to reach new heights and build their biggest pumpkin creations yet, first bringing a frightening phobia to life and then depicting a circus sideshow gone terribly wrong.
The final four carvers battle it out to earn the title of "Outrageous Pumpkins Champion"; they create a larger-than-life children's toy with a creepy spin; then, the carvers go all out with a sinister depiction of a popular playground pastime.
Three teams of bakers create clown cakes that will haunt the dreams of kids and adults alike; in addition to the creep-out clown cakes, Vivian Chan and Zac Young challenge the bakers to create concession stand sideshow treats.
Vivian Chan and Zac Young challenge the three teams of bakers to imagine a dangerous snake charming gone wrong; in addition, each team must bake a sideshow sweet treat with a surprise inside to complement their jaw-dropping snake cake.
Three teams of bakers create mystical fortune teller cakes, but in this big top of horrors, the crystal ball only reveals tragedy and disaster; teams also create a shocking sideshow sweet to complement their main act.
Three teams of bakers design smokin' hot cakes inspired by the infamous fire breather; Vivian Chan and Zac Young also challenge them to present a fiery sideshow sweet to go with their dangerous cake displays.
The four remaining teams battle to create Halloween themed displays of their own version of a fairytale; the celebrity judge is horror movie actor Tony Todd.
The four remaining teams create displays that evoke the dire warning; whatever you do, don't go into the forest; with special guest judge, film producer Adi Shankar.
In the final teams battle to create a display that captures the twisted, demonic world of a haunted carnival; horror actor Lew Temple is the special guest judge.
Nutcrackers reveal assigned classic holiday nuts which then must be incorporated into a chocolate-nutty confection; the contestants highlight their favorite holiday memory in the form of a decorated pie.