The guys meet a man who had pieces on display in the Smithsonian, but find that what he's held on to is even more mind-blowing. And a father/daughter power struggle is a roadblock to picking a century farm.

In an antique shop closed since the 70s, Mike and Frank go toe-to-toe with the sibling owners who negotiate for every last dollar. And, the guys come upon a historic aircraft with an amazing backstory.