In November 2002, a team of four scientists set out in search of the source of Belgium's most important stream. But the E40 is erratic and unpredictable, and can't be controlled as easily as hoped.
The, slightly altered, team from episode two returns for an archaeological expedition in Ghent, Belgium, where professor Guido Van Haezelbeke found the remains of an ancient Egyptian culture, on the rooftop of a shopping center.