In Ivory Coast, an administrator is appointed to replace a colleague who has just been assassinated. The newly appointed administrator, Guillon, clashes with a powerful elite that extorts money from farmers who refuse to cultivate the land. A peanut processing plant, nearing completion, unfolds against a backdrop of ethnic rivalries and resistance from the rural population to the changes imposed by the colonial regime, which is striving to modernize traditional agriculture to demand increased production. Aided by a doctor and an engineer, Guillon succeeds in restoring the confidence of the Black farmers after thwarting the schemes of those who dared to stand in his way.