1862. Commodore Sir Francis and inventor Douglas initiated on behalf of the Royal Society of London Geography of a balloon ride under the command of Dr. Ferguson, who plans to cross Africa from east to west. But to accomplish this feat will have to overcome numerous adventures in which their lives are at serious risk.

Archaeologists, tomb robbers, a strange character and an adventurer undertake the search for the tomb of an Egyptian pharaoh, driven by different motivations: from the mere archaeological find to the destruction of humanity.