The Secret Decoder Ring

Name: The Secret Decoder Ring
Genre: Comedy, Animation, Action & Adventure, Fantasy
Released: April 8, 2005
Cast: Jennifer Hale, Grey DeLisle, Richard Horvitz, Vanessa Marshall, Greg Eagles

The Grim Adventures of Billy and Mandy: Season 4: Episode 42

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Episode Details & Credits

Cartoon Network | Air Date: April 8, 2005

Starring: Jennifer Hale, Grey DeLisle, Richard Horvitz, Vanessa Marshall, Greg Eagles

Summary: An acquaintance from Grim's past attempts to entice Endsville's children to free her from an ancient high school curse.

Genre(s): Comedy, Animation, Action & Adventure, Fantasy

Season 4 Episodes

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S4:E132. Home of the Ancients
Air Date: June 30, 2005
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S4:E131. Billy Idiot
Air Date: June 30, 2005
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S4:E122. The Bubble with Billy
Air Date: June 29, 2005

See all Seasons and Episodes

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Seasons & Episodes

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Series Overview
Season 8

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- Season 8 Overview
  Air Date: July 19, 2002
Season 7

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- Season 7 Overview
  Air Date: October 6, 2006
Season 6

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- Season 6 Overview
  Air Date: January 4, 2018
Season 5

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- Season 5 Overview
  Air Date: January 6, 2006
Season 4

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- Season 4 Overview
  Air Date: April 27, 2019
- tbd
  S4:E132. Home of the Ancients
  Air Date: June 30, 2005
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  S4:E131. Billy Idiot
  Air Date: June 30, 2005
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  S4:E122. The Bubble with Billy
  Air Date: June 29, 2005
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  S4:E121. The Firebird Sweet
  Air Date: June 29, 2005
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  S4:E112. Scythe 2.0
  Air Date: June 28, 2005
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  S4:E111. Runaway Pants
  Air Date: June 28, 2005
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  S4:E102. Puddle Jumping
  Air Date: June 27, 2005
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  S4:E101. Zip Your Fly
  Air Date: June 27, 2005
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  S4:E92. Aren't You Chupacabra to See Me?
  Air Date: June 24, 2005
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  S4:E91. Duck
  Air Date: June 24, 2005
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  S4:E82. Irwin Gets a Clue
  Air Date: June 24, 2005
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  S4:E81. Jeffy's Web
  Air Date: June 24, 2005
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  S4:E72. Scythe for Sale
  Air Date: June 17, 2005
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  S4:E71. Dream Mutt
  Air Date: June 17, 2005
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  S4:E52. The Problem With Billy
  Air Date: April 15, 2005
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  S4:E51. Wild Parts
  Air Date: April 15, 2005
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  S4:E42. The Secret Decoder Ring
  Air Date: April 8, 2005
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  S4:E41. Happy Huggy Stuffy Bears
  Air Date: April 8, 2005
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  S4:E32. The House of No Tomorrow
  Air Date: April 1, 2005
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  S4:E31. The Bad News Ghouls
  Air Date: April 1, 2005
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  S4:E25. Billy & Mandy Save Christmas
  Air Date: December 2, 2005
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  S4:E24. Prank Call of Cthulu
  Air Date: October 21, 2005
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  S4:E23. The Schlubs
  Air Date: October 14, 2005
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  S4:E22. Hog Wild
  Air Date: June 3, 2005
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  S4:E21. He's Not Dead, He's My Mascot
  Air Date: June 3, 2005
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  S4:E20. Reap Walking
  Air Date: October 7, 2005
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  S4:E19. The Taking Tree
  Air Date: November 30, -0001
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  S4:E18. Mommy Fiercest
  Air Date: August 12, 2005
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  S4:E17. Guess What's Coming to Dinner?
  Air Date: November 30, -0001
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  S4:E16. One Crazy Summoner
  Air Date: August 5, 2005
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  S4:E15. My Fair Mandy
  Air Date: July 29, 2005
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  S4:E14. Home of the Ancients
  Air Date: October 30, 2006
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  S4:E14. Billy & Mandy Save Christmas
  Air Date: December 2, 2005
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  S4:E13. Billy Idiot / Home of the Ancients
  Air Date: June 30, 2005
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  S4:E12. The Firebird Sweet / The Bubble with Billy
  Air Date: June 29, 2005
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  S4:E11. Runaway Pants / Scythe 2.0
  Air Date: June 28, 2005
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  S4:E10. Zip Your Fly / Puddle Jumping
  Air Date: June 27, 2005
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  S4:E9. Duck! / Aren't You Chupacabra To See Me?
  Air Date: June 24, 2005
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  S4:E8. Jeffy's Web / Irwin Gets A Clue
  Air Date: June 24, 2005
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  S4:E7. Dream Mutt / Scythe For Sale
  Air Date: June 17, 2005
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  S4:E7. Chocolate Sailor/The Good, the Bad and the Toothless
  Air Date: November 5, 2005
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  S4:E6. Wishbones
  Air Date: June 10, 2005
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  S4:E5. Wild Parts / The Problem with Billy
  Air Date: June 3, 2005
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  S4:E4. Happy Huggy Stuffy Bears / The Secret Decoder Ring
  Air Date: April 15, 2005
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  S4:E3. The Bad News Ghouls / The House of No Tomorrow
  Air Date: April 8, 2005
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  S4:E2. He's Not Dead, He's My Mascot / Hog Wild
  Air Date: April 1, 2005
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  S4:E1. The Secret Snake Club
  Air Date: February 21, 2005
Season 3

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- Season 3 Overview
  Air Date: August 9, 2019
Season 2

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- Season 2 Overview
  Air Date: June 11, 2004
Season 1

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- Season 1 Overview
  Air Date: June 13, 2003