Mike gets dirty in Alaska as he helps protect the environment by cleaning up an oil spill. He then travels to Minnesota where he works to pull a car out of a lake that has fallen through the ice.

Mike first visits Terressentials where natural organic hair care products are made out of mud. He then returns to Montana to do some more work with big animal vet Charlene Esch. Finally, Mike joins forces with the yak and bison rancher who put him to work in his 150th Dirty Job.