Hjulet stilles i stå

On the way to a concert, the Truckstoppers convince Duncan to make a detour to his old hometown. But they are surprised when the irate citizens of Greensburg turn on them on sight. They learn that WC Moore has sucked the town dry in an effort to find Berkonium, the rarest mineral on Earth, and Duncan was his willing accomplice. Or was he? And what does WC's obsession with mining Berkonium mean for Li'l Memphis?