Finding the actual Holy Grail is the holy grail for all global investigators so Rob's on the case. He's following in the footsteps of the Knights Templars and unearthing new evidence that could prove the grail has been hidden in Scotland all this time.

Most people know about Wyatt Earp and the shootout at the OK Corral but only Rob Riggle knows that this classic story is directly connected to the lost treasure of Skeleton Canyon