Join the intrepid Mike Rowe as he heads to a farm specializing in making garden pots from cow manure; he them visits California to check out the state's salmon population.

Mike joins the Bowie BaySox team at Prince Georges Stadium in Maryland acting as a groundskeeper. Next he fixes boat moorings with a former Navy SEAL. He then joins Watson Water company dig deep through mud, rock, gravel, sand and water as they drill for heating and water in Tennessee. Also, Mike takes a dive into the mail bag.