Island of Doomed Men is a blackandwhite 1940 film, released by Columbia Pictures, which was directed by Charles Barton from a screenplay by Robert Hardy Andrews.
Sheldon is himself subjected to the harsh conditions of the slave camp and watches in silence how the other workers are treated. He also gets to witness Danels cruel and demeaning treatment of his young beautiful wife Lorraine Rochelle Hudson and the camp cook Siggy George E. Stone. Even though Lorraine is well kept with jewels and dresses, she is every bit as much a prisoner as the men sweating in the mine. Sheldon come across as a very reluctant worker, and Lorraine is attracted to him. She starts to realize that he could maybe be her ticket off the island and escape from her life with Danel.Danel eventually finds out Sheldons true identity, which puts him at risk. Sheldon realises that the miserable Lorraine could be of help, and when he has enough time to address her, he asks her to get him Danels keys, so that he can escape from his confinement. Lorraine manages to do this, but soon after Sheldon has escaped he is again captured by the brutal camp guard captain, Cort Charles Middleton. Sheldon decides to appeal to the guard captains greed, and suggests they steal and split Danels fortune, in exchange for his and the other slavesprisoners freedom. Cort agrees to this plan and Sheldon is set free again. He returns to the other prisoners to set them free to start a revolt against Danel. But as Lorraine hands Sheldon the key, they are ambushed by Danel and his men. The prisoners revolt on their own and Cort takes the helm of the revolt, leaving Sheldon out of the plan. Cort also announces that he will take care of Lorraine. ........
Source: Wikipedia