Grim & Evil · SEASON 1
Big Trouble in Billy's Basement
Episode 20 · 2002-10-04

- Animation
- Comedy
Episode overview
After taking the Underworld's "Bad Book" from Grim, Billy becomes possessed by an evil entity. Then, Billy steals Grim's scythe, and uses it to open a portal to summon Yog-Sothoth. In consequence, Mandy calls for Hoss Delgado to battle Billy. It is revealed that the portal can only be sealed by throwing the book into it. As Billy eats the book, Mandy throws Billy himself into the portal, restoring everything to normal. Instants later, a portal opens up and Billy comes out saying that they didn't want him there.
Season 1 episodes
1. Meet the Reaper2001-08-24
2. Skeletons in the Water Closet2001-08-24
3. Opposite Day2001-08-31
4. Look Alive!2001-08-31
5. Mortal Dilemma2001-08-31
6. Get Out of My Head!2001-09-07
7. Fiend Is Like Friend Without the2001-10-05
8. Grim or Gregory / Something Stupid This Way Comes2002-07-26
9. A Dumb Wish2001-10-19
10. Grim vs. Mom2002-07-19
11. Tastes Like Chicken2002-07-19
12. Grim or Gregory2002-07-26
13. Something Stupid This Way Comes2002-07-26
14. A Grim Surprise2002-07-26
15. Beasts and Barbarians2002-08-02
16. Hoss Delgado: Spectral Exterminator2002-09-09
17. To Eris Human2002-08-09
18. Billy's Growth Spurt2002-10-04
19. Billy and the Bully2002-10-04
20. Big Trouble in Billy's Basement2002-10-04
21. Tickle Me Mandy2002-10-11
22. Little Rock of Horrors2002-10-18
23. Dream a Little Dream2002-10-18