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| Aflevering | Eerste uitzending |
|---|---|
| S04E01 - Tar Rigger | 07/10/2008 |
| S04E02 - Dirty Chip Maker | 14/10/2008 |
| S04E03 - Sheep Castrator | 21/10/2008 |
| S04E04 - Leech Trapper | 28/10/2008 |
| S04E05 - Dirty Presidents | 04/11/2008 |
| S04E06 - Mannequin Factory | 11/11/2008 |
| S04E07 - Egg Farm | 18/11/2008 |
| S04E08 - Vellum Maker | 25/11/2008 |
| S04E09 - Maggot Farmer | 02/12/2008 |
| S04E10 - Gourd Maker | 09/12/2008 |
| S04E11 - Brown Before Green 2 | 16/12/2008 |
| S04E12 - Bologna Maker | 06/01/2009 |
| S04E13 - Abandoned Mine Plugger | 13/01/2009 |
| S04E14 - Animal Rendering | 20/01/2009 |
| S04E15 - Goose Down Plucker | 27/01/2009 |
| S04E16 - Diaper Cleaner | 03/02/2009 |
| S04E17 - Spider Pharm | 10/02/2009 |
| S04E18 - Locomotive Builder | 17/02/2009 |
| S04E19 - 200 Jobs Look-Back | 24/02/2009 |
| S04E20 - Mike's Day Off | 03/03/2009 |
| S04E21 - Sled Dog Breeder | 12/04/2009 |