• Air date: 11 Jun '04 16 episodes
      This season includes 16 regular half-hour episodes. For the most part, from this season on each episode includes only two segments, each of 11 minutes (without commercials), instead of three of 7 minutes each. In this season, new characters that are introduced are Sir Raven (Julian Stone), a humanoid raven that serves as the storyteller for some segments; Lord Pain, the fearsome warrior looking to serve his master, the Grim Reaper; Cerberus, the gigantic, three-headed, fire-breathing dog of
  • List of Episodes (16)
    • 1. Spider's Little Daddy / Tricycle of Terror

      11 Jun '04
      "Spider's Little Daddy" At a father-and-son picnic, Billy re-encounters with his spider "son", Jeff, in a dirty bathroom. Once again, Jeff tries to make Billy love him as a true father does, but Billy remains terrified of all bugs. Mandy tells Jeff he is being too nice, and to get Billy's attention he needs to be meaner. After being coached by Mandy, Jeff finally snaps and ensnares Billy in his spider web, forcing Billy to say he loves him. "Tricycle of Terror" When Billy crashes his bicycle,
    • 2. Dumb Luck / No Body Loves Grim

      18 Jun '04
      "Dumb Luck" After spilling salt in a restaurant, and not throwing salt over his left shoulder, Billy starts having an unusual amount of extremely bad luck. The next day, Grim analyzes Billy and finds out he has a "Catastrophe Snail" attached to his brain, which is causing him the bad luck. "No Body Loves Grim" Billy, Mandy and Grim go to the beach where Grim falls asleep and Billy buries him in sand. When they leave, Billy only takes Grim's skull, leaving Grim's body to be found by a rich
    • 3. Lil' Porkchop / Skarred for Life

      25 Jun '04
      "Lil' Porkchop" After he turns down his dad's invitation to go fishing, Billy gets a tiny, weakling, pet fish, which he names Little Porkchop. To make Billy happier, Grim makes the fish grow overnight to become a giant. Billy takes Porkchop to play under the Sun, and never gives him water again. He burns to ashes and is flushed down the toilet. Billy's dad returns form his fishing trip having caught Porkchop, now back to his normal size, but plans to cook him. "Skarred for Life" General Skarr
    • 4. House of Pain / A Grim Prophecy / Mandy Bites Dog

      02 Jul '04
      "House of Pain" Lord Pain, a fearsome warrior from the Plain of Eternal Suffering, appears in Billy's house looking to serve his master, Grim. Lord Pain is put to clean the bathroom, and is confused as to why Billy and Mandy treat Grim the way they do. Eventually, Lord Pain realizes that Mandy is to be his real master, and prepares mashed potatoes for her. "A Grim Prophecy" In this short, set in the Stone Age, a child version of Grim undertakes his first assignments as the Grim Reaper. When
    • 5. Nursery Crimes / My Peeps

      09 Jul '04
      "Nursery Crimes" After Billy eats 19 creme-filled Atomic Frenzy Cakes he cannot sleep and wants Mandy to read him a bedtime story. Mandy, Billy and Grim each tell a story. For his story, Grim uses a supernatural storybook from the Underworld, which makes Billy and Mandy enter the book and reprise the tale of Hansel and Gretel. Billy departs from the story and follows Pinocchio, who wants to devour Billy to become a real boy. Mandy saves Billy from Pinocchio, but she and Billy remain trapped in
    • 6. Nigel Planter and the Chamber Pot of Secrets / Circus of Fear

      16 Jul '04
      "Nigel Planter and the Chamber Pot of Secrets" When Billy, Mandy and Grim go playing golf, they encounter boy wizard Nigel Planter again, who is there hiding from the dark wizard Lord Moldybutt. They head back to the School of Sorcery, where they keep on running into Moldybutt, who warns them to stay away from the "Chamber Pot of Secrets" hidden in Dean Toadblatt's office. It is revealed that Lord Moldybutt is actually Toadblatt, who was disguising himself to scare off Planter. Note: The title
    • 7. Bully Boogie / Here Thar Be Dwarves!

      23 Jul '04
      "Bully Boogie" fter failing to scare a fifteen-year-old, the Boogeyman decides to visit his old middle-school victim, Grim. Grim remembers how Boogie used to be a bully, and demands an apology from him. Boogie disappears to the Underworld, taking Billy with him. Mandy and Grim follow Boogie, and to settle their differences Mandy suggests having a scaring contest, in which whoever can scare a kid the most wins. Boogie's transformation as a werewolf is not enough to scare the kid, but Grim's
    • 8. Which Came First? / Substitute Teacher

      30 Jul '04
      "Which Came First?" While going to a science museum, Billy and Mandy's school bus breaks down in the middle of the desert. After digging for fossils, Billy, Mandy and Grim wander around and find an abandoned mine, where Billy is captured by a giant, mutant chicken. When Mandy and Grim go to rescue him, they find an underground laboratory from the days of the Cold War where mutant chickens were created. The mountain makes eruption, the chickens are roasted by lava, and the whole class obtains
    • 9. Super Zero / Sickly Sweet

      01 Oct '04
      "Super Zero" After watching a TV show, starring Captain Heifer and his Heifer Farms Brand Yogurt, Billy asks Grim to turn him into a superhero with the power of squeaking and throwing yogurt from his armpits. With his wish granted, Billy goes to outer space to fight the Evil Empire, but the planet he visits is mostly inhabited. Despite being free of Billy, Grim still has to deal with Billy's equally dumb father, Harold. After Billy fills the alien planet with yogurt, he returns home to be
    • 10. Bearded Billy / The Nerve

      08 Oct '04
      "Bearded Billy" When Billy sees his father shaving, he decides having a beard is cool and buys "Hair Raiser Tonique", a hair-growing formula. Grim casts a spell on the tonic to make its effects appear faster, but Billy exaggerates the quantity and grows hair in all his body. Billy is mistaken for the Sasquatch, and a reward is offered for his capture. Hoss Delgado also receives the tonic and is captured and exhibited as the Sasquatch, while Mandy collects the reward. "The Nerve" After being
    • 11. Test of Time / A Kick in the Asgard

      15 Oct '04
      "Test of Time" When Billy forgets to do his history homework, Grim gives him a universal remote control to alter time and space so he can go back in time and finish his report. Billy and Mandy travel to the American Revolution, to prehistoric times, and even to the future, where they meet an aged Billy who is just finishing the report. After a struggle for the remote, Billy ends up again in the Prehistory and the remote breaks. Fast forward into the present, every person is dumb like he is and
    • 12. Five O'Clock Shadows / Terror of the Black Knight

      22 Oct '04
      "Five O'Clock Shadows" Grim is annoyed by Billy who thinks that a shadow is following him. Grim takes Billy and Mandy to the Shadows' World, where their opposites live. Grim tells them to do whatever they want, but to be back at 5 o'clock, when the portal to the normal world opens. Grim also warns Billy about the Door to Other Dimensions, but Billy opens it and a multitude of Billys come out an wreak havoc. "Terror of the Black Knight" After being impressed by Irwin's realistic armor at the
    • 13. Attack of the Clowns / Complete and Utter Chaos (a.k.a. Billy Gets Dumber)

      29 Oct '04
      "Attack of the Clowns" After Billy wakes up from another nightmare involving clowns, he is more terrified than ever towards them, so Mandy and Grim try to cure him of this clown-a-phobia. Mandy asks Grim to bring to life a clown's head made on paper mache to entertain Billy, but the spell does not seem to work. They dress up as clowns in an attempt to look harmless. After consulting with his imaginary "Inner Frat Boy", Billy changes his feeling from being afraid to being angry at clowns, and
    • 14. Whatever Happened to Billy Whatsisname? / Just the Two of Pus

      05 Nov '04
      "Whatever Happened to Billy Whatsisname?" When Billy and Mandy have a brief fight, Billy says he never wants to speak to Mandy again. The next day, Billy is over his grudge, but Mandy has already decided to find a replacement for him. Mandy introduces Bobby, the new "Billy", who turns out to be a better friend than Billy, even gaining the affection of his parents, but who also wants to take over Billy's life. A jealous Billy uses Grim's scythe to open a portal and send Bobby to another
    • 15. Chocolate Sailor / The Good, the Bad, and the Toothless

      12 Nov '04
      "Chocolate Sailor" While reading an Underworld comic book, Billy finds an advertisement for "Chocolate Sailors", a delicious chocolate candy-which being Underworld candies are secretly hexed into enslaving the eater. Billy becomes a seller of Chocolate Sailors, but instead of selling them ends up eating them all by himself. The enchanted candies turn him into solid chocolate, and now Billy cannot stop eating himself. Billy, Mandy, and Grim go searching for the Chocolate Sailor to retrieve the
    • 16. That's My Mummy / Toys Will Be Toys

      26 Nov '04
      "That's My Mummy" When Billy hangs out at Irwin's house, he finds a living mummy in the bathroom. Seeing as Irwin gets nervous, and as Billy has never met Irwin's mother, he suspects she is the mummy. To scare him off, Irwin's dad tells Billy he has the "curse of the mummy". Billy is attacked by insects and snakes while he tries to find out the truth about the mummy. It is later confirmed that Irwin's mother is in fact the mummy, but no further explanation is given as to how Irwin's family