>> chuck mcguire: it really is. >> stahl: chuck mcguire was one of the first to arrive. university of washington's applied physics lab that was brought in to build this camp from scratch. so you get off the plane. there's nothing. >> mcguire: yeah. >> stahl: there's no shelter, there's no indoors. >> mcguire: no. >> stahl: there was just ice? >> mcguire: ice everywhere. that's right. >> stahl: and you say, "how am i going to survive?" >> mcguire: you pick up a hammer and start building. >> stahl: they built a makeshift city called sargo for roughly 60 people, consisting of a command airlifted in weekly, and some very primitive toilet facilities. >> mcguire: that outhouse is really cold. (laughter) >> stahl: that outhouse is awful! oh my god! what about water? you can't just eat the ice, right? >> mcguire: you can if you know what you're looking for. >> stahl: this ice mining team knows what to look for: old sea ice that's been baking in the sun long enough that the salt has leached out. >> ice mining ic we are returning back to camp. >> stahl: they bring back chunks to me