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| Aflevering | Eerste uitzending |
|---|---|
| S04E01 - The Secret Snake Club | 25/02/2005 |
| S04E02 - He's Not Dead, He's My Mascot | 01/04/2005 |
| S04E03 - Hog Wild | 01/04/2005 |
| S04E04 - The Bad News Ghouls | 08/04/2005 |
| S04E05 - The House of No Tomorrow | 08/04/2005 |
| S04E06 - Happy Huggy Stuffy Bears | 15/04/2005 |
| S04E07 - The Secret Decoder Ring | 15/04/2005 |
| S04E08 - Wild Parts | 03/06/2005 |
| S04E09 - The Problem with Billy | 03/06/2005 |
| S04E10 - Wishbones | 10/06/2005 |
| S04E11 - Dream Mutt | 17/06/2005 |
| S04E12 - Scythe for Sale | 17/06/2005 |
| S04E13 - Jeffy's Web | 24/06/2005 |
| S04E14 - Irwin Gets a Clue | 24/06/2005 |
| S04E15 - Duck! | 24/06/2005 |
| S04E16 - Aren't You Chupacabra to See Me? | 24/06/2005 |
| S04E17 - Zip Your Fly | 27/06/2005 |
| S04E18 - Puddle Jumping | 27/06/2005 |
| S04E19 - Runaway Pants | 28/06/2005 |
| S04E20 - Scythe 2.0 | 28/06/2005 |
| S04E21 - The Firebird Sweet | 29/06/2005 |
| S04E22 - The Bubble with Billy | 29/06/2005 |
| S04E23 - Billy Idiot | 30/06/2005 |
| S04E24 - Home of the Ancients | 30/06/2005 |