A young archaeologist finds a primitive hand axe that is thought to be more than 400,000 years old. Engineers building a railroad discover that the gravel they're using is actually 5,000-year-old crumbling brick from the ancient Indus Valley civilization. An Englishman living in India is fascinated by the mysterious script on the ancient coins he collects and works feverishly to decode the long-lost language. These are a few of the clues to a fascinating...