S04 Special: Tight Spaces
S04 Special: Dirty Innovators
S04 Special: Spray Insulation Technician
S04 Special: Creepy, Slimy and Just Plain Weird
S300 Special: 150th Dirty Job Extravaganza
S300 Special: Crew's Cruise
S04 Special: Dirtiest Machines on the Planet
S03 Special: Really Dirty Animals
S09 Special: Dirty DNA
S09 Special: Dirty Infrastructure
S09 Special: Dirty Conversations (1)
S09 Special: Dirty Holidays
S08 Special: The Nitty Gritty: Beer Processing
S08 Special: The Dirty Truth
S08 Special: Crew Unemployment
S08 Special: Tight Spaces (2)
S07 Special: Sled Dog Breeder
S02 Special: Mike's Day Off
S07 Special: 200 Jobs Look-Back
S07 Special: Brown Before Green (2)
1x03: Roadkill Cleaner
1x02: Worm Dung Farmer
