On this edition of the program, we explore ancient anomalies of archaeology and other riddles of the past. Curious legends like those of the pre-Inca tradition of "Viracocha" may hint at possible interactions between different cultures in the ancient world. Such stories were also what fueled Thor Heyerdahl to sail across the Pacific Ocean, to prove that ancient people might have done the same. Could early migrations into the Americas have occurred much earlier than once thought?