A series of accidents are blamed on a local curse; workers are ready to give up on the expedition when no diamonds are found on Sam's dig.
Evidence of mining activity is gleaned from a translated Sanskrit scroll, and leads Sam and Steve to the possible source of the mines, but disaster strikes when the river-dredging begins.
Work on a new dig site begins in a place that Steve believes is above the source, but tension in the ranks puts their efforts on hold. Meanwhile, underwater operations are delayed after a crocodile is spotted.
An approaching monsoon means the team will have to suspend operations in less than four days. Meanwhile, an encouraging discovery is made that could indicate the location of a source.