
Pops begs Benson to not do it because of what happened to High Five Ghost the last year. Their reason for doing this is an act of "survival", due to a mysterious fog that appeared, rendering them unable to leave the park. Benson(dressed as Saturn) tells them about the Halloween tradition, and that whoever is last it's their turn to be sacrificed to the hole. Muscle Man(dressed as Mars) tells Pops(dressed as the sun) a joke, but then Skips(dressed as Jupiter) tells them that it's time. As Muscle Man drives the crew, Pops volunteers to tell the first story. Sorrenstein's home to meet her, though they're forced to tell scary stories while they go there or Muscle Man won't introduce them to her. So, they finish the rest of their Halloween night traveling all the way to Mrs. After a couple guesses (Skips: Rent a few genre films, Pops: Go to bed early), he suggests going to haunted house, commenting, "Those are the scariest" to which Muscle Man replies, "You know who else is the scariest? MY MOM." Everyone is annoyed with Muscle Man making another "My Mom" joke, but they soon realize that none of them (not even Hi Five Ghost) have even met her. Mordecai says that they do that every year and then Rigby suggests that they should do something really scary. Muscle Man suggests telling scary stories. Benson then asks fellow park workers what they want to do.

Muscle Man then enters the house and tells the park workers that there will be no more trick or treaters. Muscle Man tries to scare off two children who come to the house trick or treating but fails to do so with his mask on but as soon as he removes his mask, the children get scared and run away screaming. Scary Movie Night: Mordecai, Rigby, Eileen and CJ get stuck in a horror film Rigby bought and must survive it until the end of the movie.


Unfinished Business: After Mordecai and Rigby die, Benson must fire Mordecai and Rigby to get them to stop haunting the house. The Hole: Pops must be sacrificed to a sacred hole but tries to get them to think of another way. On the way to her residence the group tells ghost stories, including one where Mordecai and Rigby die and return to haunt Benson. Mordecai, Rigby, and the gang decide to visit Muscle Man’s mother on Halloween.
