A drought hits San Lupo. A nomadic group led by Charlie, comes. They know how to find water and want to trade. Ish has his doubts, but chooses to accept help. They strike water. But a trade might not be enough for Charlie...

San Lupo fights for survival against the virus. Ish realizes the answers to humanity’s future may not be in his books. That’s when Ish finds Joey’s secret project. There must be others out there. Joey might just hold the key...