Mike Rowe finds the fun in the world's dirtiest, most dangerous jobs. Join Mike on his adventures as he exposes the dirty side of 'clean energy' and help Mike celebrate his 150th Dirty job. With these 27 jobs, you will gain a new appreciation for the hard-working people dedicated to cleaning up our environment and to keeping our lives running smoothly, no matter how dirty they get.

Title from container. Originally broadcast on the Discovery Channel during the 2008 season. Contains all 13 episodes and 27 jobs from the fourth season.

Disc one:Episode: Mackinac Island horse keeper ; Alaska wild goose chaser -- Episode: Animal barber -- Episode: Tank liner ; Goat soap maker ; Reef ball maker -- Episode: Dump truck cleaner ; Exotic animal keeper -- Episode: Barbeque cleaner ; Big animal veterinarian ; Oil tank remover. Disc two: Episode: Barge demolition worker ; Steel mill worker -- Episode: Water tank cooper ; Elevator repairman -- Episode: Floating fish factory worker -- Episode: Dairy cow midwife. Disc three: Episode: Erosion control technician ; Aerial tram worker -- Episode: Mastic slinger ; Turkey inseminator ; Car crusher -- Episode: Snow oil separator ; Ice salvage crewman -- Episode: Wind farm technician ; Cave cleanup worker ; Printing pressman.