Airs Sunday June 21st at 10/9c on HISTORY. AFRICAN MONSOON - Terrible weather conditions turn the expedition into a struggle for survival. As the explorers begin the day's hike, they realize they only have 30 days to complete their journey because of rainy season. Progress is hampered by heavy rains, and the group fears for hypothermia. They slog through the mud and the rain and when one of the group gets frustrated with a local guide's help, he takes over navigation. The first possible camp site shows evidence of snake holes. Conflicts within the group continue, and one of them is violently ill overnight. Join other fans on Facebook: http://www.facebook.com/History . Follow us on Twitter: http://www.twitter.com/History_Daily . Play games, watch full episodes and more at the official site http://www.history.com/expedition/