The Foster gang was a group of criminals who operated in South Africa, around Johannesburg and the Rand, between the months of July and September 1914, committing various acts of robbery and murder.

Cutter Murdock inherits an estate in Africa on which "Satan's Harvest" (heroin and marijuana) is grown. The thugs growing the drugs want him out of the way, so things get messy.

Drama among diamond smugglers and gold fever in South African bush.