1Toadblatt's School of Sorcery
Grim gets Billy and Mandy into Toadblatt’s Summer School of Sorcery! They join Nigel Planter’s infamous Weaselthorpe House to compete against Gunderstank House.
2Educating Grim
Mandy’s arch nemesis, Mindy, befriends Grim. But is Mindy all that she seems?
3It's Hokey Mon!
Grim brings Billy and Irwin’s monster cards to life! Chaos and hilarity ensue.
4Night of the Living Grim
Grim gets so sick he becomes alive!
5Brown Evil
Billy, Mandy and Grim become trapped in their house by brownie-loving zombies! It’s up to Hoss Delgado to lend a hand!
6Brown Evil, Part 2
Billy, Mandy and Grim become trapped in their house by brownie-loving zombies! It’s up to Hoss Delgado to lend a hand!
7Mandy the Merciless
In a future time, in a future place, Mandy rules the world. But not everyone is happy about it.
8Creating Chaos
Eris returns! And this time, she’s enlisting Billy’s help to spread chaos throughout the world!
9The Really Odd Couple
Hilarity and antics ensue when America’s favorite precocious tweenagers are forced to share the same bedroom!
10Who Killed Who?
Mandy visits the old haunted house down the street. No one has emerged from that house in years. Will Mandy make it out alive?
11Tween Wolf
Irwin turns into a werewolf! Billy enters him in the dog show.
12Grim in Love
Grim falls in love with a goth girl. But what will happen when she discovers Grim is not just a thin pasty guy dressed in black?
13Crushed!
Mandy is horrified to discover she’s developing a crush on a boy. She consults with Grim to help her get over it.
14Love Is Evol Spelled Backwards
Nergal attempts to woo Billy’s aunt. Can Billy stop Nergal from sweeping his aunt off her feet?
15The Crawling Niceness
Billy hatches a giant, talking spider from an egg in Grim’s secret trunk. Despite the spider’s overwhelming fondness for Billy, Billy hates all bugs and wants it dead.
16Smarten Up!
To help Billy pass a test, Grim gives Billy a bookworm to eat to smarten up. Unfortunately, the cat gets to the bookworm first.
17The Grim Show
While trying to stop his favorite show from being cancelled, Grim inadvertently becomes its new host…
18Son of Nergal
Billy and Mandy go to Winter Camp, and must contend with snowy weather, a freezing cabin, and the mysterious Nergal Jr!
19Sister Grim
Grim is mistaken for “Sister Big Mama,” and gets adopted by a convent of loving, bell-ringing nuns. It’s up to Billy and Mandy to set them straight.
20Go Kart 3000!
Grim and the kids enter the annual Endsville GoCart Competition!
21Terror of the Black Knight
Billy tries to show off at the Rennaissance Festival in a suit of cursed knight’s armor conjured by Grim!
22Battle of the Bands
Grim becomes the lead singer of a goth metal band, “Purple Filth.” Billy is jealous, and recruits his dad to teach him how to compete in the “Battle of the Bands” competition.
23The Halls of Time
Grim takes Billy and Mandy on a field trip to the Halls of Time, where the past, present, and future are monitored.
24Grim for a Day
Billy and Grim trade places for a day to see what it’s like in the other one’s shoes.
25Chicken Ball Z
With the help of a mysterious chicken ball, Mandy enters the local karate championship and takes on all comers. Now, she’s out of control, and it’s up to Billy to stop her!
26Billy and Mandy's Jacked Up Halloween
Jack, a headless prankster from Grim’s past, uses Billy to steal Grim’s scythe so he can destroy Grim, and then take over the world with demons from the Netherworld.