Back to Season 4
The Secret Decoder Ring
An acquaintance from Grim’s past attempts to entice Endsville’s children to free her from an ancient high school curse.
More from Season 4
Episode 1
The Secret Snake Club
Mandy joins the Secret Snake Club where they call forth an ancient entity to save nerds from persecution.
2005-02-25
Episode 2
He's Not Dead, He's My Mascot
Mindy leaves the school mascot with Billy for safekeeping and the animal mischief leaves no one unscathed.
2005-04-01
Episode 3
Hog Wild
Billy’s dad gets a new motorcycle just in time for Billy’s rebellion.
2005-04-01
Episode 4
The Bad News Ghouls
Baseball gets scary when Grim brings in some dead ringers to help Billy & Irwin defeat Mindy’s team.
2005-04-08
Episode 5
The House of No Tomorrow
Billy, Grim, and Mandy visit a closed amusement park attraction and find out why they should fear the future.
2005-04-08
Episode 6
Happy Huggy Stuffy Bears
Mandy’s burgeoning acting career unleashes toys with an ulterior motive.
2005-04-15
