Mike installs rebar with a team of rodbusters, then he galvanizes steel.

Mike visits a ship-building community in Coden, Ala., to learn the ins-and-outs of building a tugboat; he makes a long climb to the top of a dirty water tower in Magee, Miss., to clean inside the tank.

Mike sucks rocks off an industrial roof with a massive vacuum. He then travels to the Black Hills to carve the largest monument in the world: Crazy Horse. Both stories involve several generations working together to pass on their life's ambitions.

Mike Rowe crams into a hockey arena's escalator where he scrapes and cleans a special kind of shmutz from the bottom. Then, he and a zoo keeper venture into the hot, treacherous Arizona desert at night to round up neurotoxic stinging scorpions.

Mike Rowe trains as a trauma surgeon using hyper-realistic scenarios and specialized equipment to learn under simulated battlefield conditions. He then controls an invasive mess of iguanas which are posing health risks to humans on the Florida coast.