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Underfist: Halloween Bash is available on HBO Max in the following countries:

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Underfist: Halloween Bash poster image
Underfist: Halloween Bash (2008)
⭐ 7.5/10
19 votes
1h 1m

Genres

Action
Comedy
Family
Fantasy
Animation
TV Movie
Adventure
Horror

Irwin, Hoss Delgado, Jeff the Spider, Fred Fredburger, and General Skarr from the "Grim Adventures of Billy and Mandy" team up to fight an evil candy army from the Underworld on Halloween.

IMDb+ Watchlist