When Alan Howard, a young Englishman, arrives in Kenya to visit his older brother on his farm he finds the latter has been brutally murdered by the Mau Mau. He decides to go on exploiting the farm and to fight the rebels with all his energy. He falls in love with Mary, the daughter of a settler who lives close to his estate. Although the young woman shares his love she disapproves of Alan's hatred of Blacks. Alan will eventually mellow after Dr. Karanja, a native physician, sacrifices his life to prevent the slaughter of a group of white settlers.