Today we are talking about a stretch of water you may have been hearing about constantly in the news: the Strait of Hormuz.

You've seen it in headlines. Oil prices are surging. Diplomats are flying to Islamabad. The U.S. Navy is clearing mines and attacking Iran. Iran is attacking all of its neighbors. And there's talk of a blockade. If you've been trying to follow along but keep feeling like you walked into the middle of a movie, this episode is for you.