Scooby-Doo! Mystery Incorporated (Scooby-Doo! Gizem Avcıları) 1. Sezon 3. Bölüm (Secret of the Ghost Rig)

Strange things continue happening in Crystal Cove, when doorknobs suddenly vanish and a priceless diamond is hidden somewhere. To top it all off, a mysterious Ghost Trucker is also scaring the town.