The fourth episode sheds light on how film, the most powerful storytelling medium ever created, exploits techniques invented by artists in the ancient world.

The fourth episode sheds light on how film, the most powerful storytelling medium ever created, exploits techniques invented by artists in the ancient world. The program examines the evolution of storytelling through visual images and sound, from Australian aboriginal paintings dating back tens of thousands of years to such monuments as Trajan's Column in ancient Rome right up to the present.