Mandy enters a beauty pageant for the sole purpose of showing up Mindy.

Billy, Mandy, and Grim visit Nigel Planter who is now a teenager with only one thing on his mind. Hoss Delgado and Eris pose as Billy's parents for principal Goodvibes visit.

Mommy Fiercest: Grim helps Billy's mum with her wrinkles by turning her into a girl. The Taking Tree: Billy loses his action figure and Grim loses his scythe to the Taking Tree.

Reap Walking: Mandy tries to prove that Grim is innocent of reaping the rare white-winged owls. The Loser from Earth's Core: Billy and Grim try to make Nergal accept his life.

Ecto Cooler: The ghost of Lord Byron helps Billy to become the coolest kid in school. Schlubs: Grim discovers the tiny mushroom village of the Schlubs in Billy's backyard.

Billy and Irwin make a prank call using Grim's cursed phone, thereby waking up a sea monster named Cthulu, who can destroy the world unless Grim and Mandy stop him.

Santa has been turned into a vampire, and only Billy and Mandy can turn him back and save Christmas.