• Air date: 24 Aug '01 8 episodes
      This season includes the 13 episodes originally produced as part of Grim & Evil, although only those which are part of The Grim Adventures of Billy & Mandy are summarized in 8 episodes. This season introduces the three main characters, the extremely happy-go-lucky Billy, the sour and cruel Mandy, and the Grim Reaper himself, who is condemned to spend his time being the two kids' best friend. Recurring characters that are presented are Billy's family and friends, including his dumb father,
  • List of Episodes (8)
    • 1. Meet the Reaper / Skeletons in the Water Closet / Opposite Day

      24 Aug '01
      "Meet the Reaper" Billy's pet hamster, Mr. Snuggles, celebrates his 10th birthday, so the Grim Reaper comes for him. However, Mandy, Billy's friend, is reluctant in allowing it, so she proposes a deal to the Grim Reaper: if he beats the kids in a game, he can take the hamster, but if he loses, he will spare the hamster's life and become their "best friend forever". The Grim Reaper transports the kids to limbo, where he challenges them to a game of limbo. Despite his best effort, Grim ends up
    • 2. Get Out of My Head! / Look Alive! / Mortal Dilemma

      31 Aug '01
      "Get Out of My Head!" After watching a movie, Grim teaches Billy to possess people by jumping into their heads. Billy possesses Mandy and makes her do assorted things like flirting with Irwin, kissing Mandy's mother, going into both men's and women's restrooms and eating earthworms. In the end, Billy leaves Mandy's head, but later that night, Mandy possesses Billy's cat, Milkshakes, to maul him as a form of revenge. ""Look Alive!" Grim is bored of being left alone while Billy and Mandy are
    • 3. Fiend is Like Friend Without the 'R' / Recipe for Disaster / A Dumb Wish

      07 Sep '01
      "Fiend Is Like Friend Without the 'R'" Billy wanders into a junkyard, where a massive hole in the earth opens up and pulls him down in. Later, Mandy and Grim get pulled in as well. They land at the center of the Earth, which is home of Nergal, a devilish creature. The lonely Nergal, who has been watching Billy and Mandy for some time, wants Grim to hand over the kids to him so they can be his friends forever. Grim happily leaves the kids behind as he returns to the surface; however, he later
    • 4. Grim or Gregory? / Grim Vs. Mom / Tastes Like Chicken

      05 Oct '01
      "Grim or Gregory?" It's Halloween, Billy, Mandy and Grim go trick-or-treating. Grim mistakes a woman for Atrocia, the host of the all-night Halloween marathon on TV and goes to talk to her. Upon looking at her face, Grim realizes his mistake; however, the woman mistakes Grim for her son, Gregory, and takes him home Gregory is now Grim, and does not have a stomach. At the same time, Billy mistakes Gregory for Grim and he and Mandy take him with them. In the end, Billy and Mandy take Gregory back
    • 5. Something Stupid This Way Comes / A Grim Surprise / Beasts and Barbarians

      12 Oct '01
      "Something Stupid This Way Comes" Nergal, the fiend from the center of the Earth, returns to the surface, emerging a carnival with him, trying once more to make friends. In the following, Billy tries to help Nergal make friends by being considerate, but Nergal fails to apply correctly his advice. When Nergal is told that Grim was forced to be Billy and Mandy's friend-slave, Nergal then decides to force the world to be his friends by turning them into dark beings similar to him. In the end,
    • 6. Billy's Growth Spurt / Hoss Delgado: Spectral Exterminator / Tickle Me Mandy

      19 Oct '01
      "Billy's Growth Spurt" Billy eats too much junk food that makes him feel sick. Grim prepares him a remedy using his granny's recipe, but this medicine makes a parasite to start growing in Billy's back, which Billy names Yap-yap. In the following, Billy and Yap-yap continue eating junk food, so Mandy suggest to use the antidote to the original remedy. Eventually, Yap-yap, now looking like a smaller version of Billy, detaches himself from Billy (which would have technically cured Billy without
    • 7. Billy and the Bully / To Eris Human / Big Trouble In Billy's Basement

      19 Jul '02
      "Billy & the Bully" Billy is constantly provoked by a bully named Sperg and runs over to Grim for help. "To Eris Human" While going to the shopping mall with Billy and Mandy, Grim spots the beautiful Eris, the goddess of discord and chaos, and tries to ask her out. However, Eris is not interested in the skinless Grim, but in the muscular Adonis. Then, Eris invites Mandy to join her in creating chaos using the Apple of Discord. Although initially they get along, Eris pulls a prank on Mandy,
    • 8. Battle of the Bands / Little Rock of Horrors / Dream A Little Dream

      26 Jul '02
      "Battle of the Bands" Billy wants to join Sperg's garage band, "Purple Filth", and take part in the upcoming battle of the bands. After witnessing Grim's prowess with the electric guitar, Sperg invites Grim instead. Billy's dad, adopting the rock and roll persona of "Mogar", decides he and Billy should go to the contest to make a surprise appearance. Billy impresses the audience with his armpit sounds. "Little Rock of Horrors" In this musical episode, which pays homage to Little Shop of