Leaving the islands, the guys head into mainland PNG and drive up into the rugged Highlands with their friend Nick.  They travel through Goroka, where they take part in an embarrassing Mudmen dance ritual involving bows, arrows and loincloths.  They prepare for an epic journey: A private flight north to a remote grass airstrip, where they have three days to make their way down the extremely remote Sepik River and try to become true men of the Sepik.

The guys’ adventure begins by zip lining across jungle canopy, rappelling down waterfalls and bungee jumping off a city bridge.  They dive with sharks off the Galapagos Islands, and realize the human impact on animals there.  On the mainland, they stumble upon the Intiraymi festival, where celebrations are contrasted by near-riots between conflicting tribes.  Next, they venture into the Amazon to find the Hourani tribe, and arrive the day of the Chief’s father’s funeral. Attending the ceremony, they learn how the tribes are fighting to keep their traditions alive and protect their land.

Scott and Justin explore the spiritual side of Ethiopia.  In Lalibella, they visit ancient churches carved entirely out of stone, and Justin tries teaching a class of school children some new words.  They visit the castles in Gondor and the Church of Saint Mary of Zion, which claims to house the lost Ark of the Covenant.  At the Debra Damos monastery, accessible only by climbing a rope up a sheer cliff, they share some difficult but hilarious conversation with a well-spirited monk, who has some poignant things to say about brotherhood and human origins.

Scott and Justin meet up with Robel, who takes the guys to visit his sisters in his village of Harar.  They visit the bustling chat market, and learn how to prepare the traditional stimulant.  That night, Robel takes them to feed some wild hyenas by hand.  Leaving Harar, they take a long drive to visit the Hammer Tribe.  Here they witness a rare ceremony in which the women of the village offer themselves to be whipped, and one soon-to-be married man has to run, stark naked over a dozen bulls, to prove his worth as a husband.

Rwanda is a country emerging from its darkest years of poaching and the 1994 genocide.  Scott and Justin travel with locals to learn more about how Rwanda is managing today.  They explore the recovery of the animal population – from swimming cows on Napoleon Island to trekking into the wild to visit isolated groups of mountain gorillas.  This experience is contrasted with a visit to the church of Ntarama to talk to a genocide survivor, and a court tribunal of several accused men.  The guys hear stories of forgiveness from the people, and learn of their hope for their country.