S1, E8: While on holiday in the Grand Canyon, the gang meet up with an archaeologist, Professor Jeff Carver, and his assistant, Chuck Hunt. They have discovered a city in the cliffs that seems to be haunted by the Devil Bear.

Starring Louis Jourdan 

S1, E8: While on holiday in the Grand Canyon, the gang meet up with an archaeologist, Professor Jeff Carver, and his assistant, Chuck Hunt. They have discovered a city in the cliffs that seems to be haunted by the Devil Bear.