Although the title refers to the British commissioner of the N'Gombi district of Nigeria during the Colonial days of the British Empire, Paul Robeson's magnificent rich baritone voice is easily the highlight of this well-made but dated film. Looking at it from the 90's perspective, I was appalled to see the native blacks treated as savages and children at the same time. Paul Robeson expected a different kind of film and unsuccessfully fought its release after it was completed. Leslie Banks plays Commissioner Sanders, called "Lord Sandy" by the natives, and oversees the various competing and sometimes hostile tribes. In the last five years, there has been peace among the tribes due mostly to the respect and fear of him. Robeson is a prison escapee who has been chief of the Ochuri tribe for the last five months, an illegal act without permission from Banks. He goes to Banks to claim that chiefdom, and Banks, knowing who he really is, and sensing he is a good man, proclaims him chief on the basis of those last five months. It pays off when word comes that Chief Mofolaba (Tony Wane) has been raiding other tribes to gather slaves, and Banks has Robeson and his warriors capture him and free those captives. It's a humiliation that Mofolaba swears he will revenge. Among the captives is lovely Nina Mae McKinney, who Robeson takes for his wife, and who bears him two children during the next five peaceful years. When Banks decides to take a year's leave of absence to return to London to get married, two villains spread the word that Banks is dead and there is now no law. They expect to profit by selling guns and gin to the natives. Mofolaba kills Banks' replacement and has his men kidnap McKinney to use as bait to lure Robeson to his land so he can have his revenge. Meanwhile, word gets to Banks, who hasn't yet left for London, about his replacement's death and the general lawlessness that now prevails, and he starts to return to Mofolaba's land. And Robeson takes Mofolaba's bait, but is captured and tied to a post next to the post that McKinney is tied to. Mofolaba promises him a slow death after he witnesses McKinney's death.