In a their man-made raft, Hesselberg and his crew travelled 4300 sea miles out in the open water. Erik Hesselberg talks about navigating the three-month long expedition on the Kon-Tiki from South America to French Polynesia. Hesselberg said everyone should have such an experience as he did, to be unencumbered while out at sea.

Thor Heyerdahl, an adventurer and ethnographer, discusses his newly published book, "The Ra Expeditions." He talks about his adventures sailing from Africa to South America on the ships "Ra" and "Ra II" which were made from papyrus. Heyerdahl explains the trial and error he had getting the papyrus reeds, building the ship, and sailing. Briefly the two discuss environmental concerns with the ocean. Heyerdahl also talks about ancient peoples and their cultures and technologies they used. Near the end of the interview Thor reads a passage of his book.

Dr. Alan Solem, a malacologist, and Dr. John Engle, a bryologist, from the Field Museum discuss a research trip they plan to take to Australia. The two doctors also discuss climate and ecology in the Americas and in Australia. Dr. Solem will be researching land snails and Dr. Engel moss and liverworts.