The atmosphere is volatile in the South African province of the Transvaal at the start of 1880. The discovery of diamonds has bred greed; a strong anti-British feeling is taking hold amongst the Boer farmers; and the bePedi tribe continues to rampage after the defeat of their Zulu allies. Former captain Simon Fonthill and his servant "352" Jenkins receive a cry for help from an old friend who has been kidnapped on South Africa's new Diamond Frontier. The pair must go to her aid before redeeming a promise to act as army scouts in this increasingly turbulent region. When the acclaimed British hero General Wolseley decides to lead his column against the impenetrable stronghold of the bePedi, Fonthill and Jenkins once again find themselves marching to war...