Join David and Ryan as they embark on their first "Deep Dive" -- an exhaustive (and exhausting) exploration of a single Hollywood artifact. Their first subject is the most famous hat in movie history: INDIANA JONES’s fedora. Learn how to ID an Indy hat, the differences between each movie's hat, and which hat the guys might have in their own collections. To aid them in their search for enlightenment, Ryan and David have invited on friend, collector, author, and Lucasfilm historian, Brandon Alinger. So coil your whip, zip up your leather jacket, and come learn about the hats of all three -- that's right, three -- Indiana Jones films.