This week Mattie goes into the origin and definition of the terms first, second, third, and fourth world countries. and after Austin gets done assuming fourth world countries are mole people (they are not) he talks about the real underground menace and teaches us all about the 1980 Mt St Helens eruption and the unexpected similarities he found to events happening now. I also guess there are some spoilers to the movies Face/ Off and Dante's Peak, but those came out in the 90's you should have seen them by now.