In 1923, Albert Londres, the famous reporter, travels to the French penal colony in French Guyana. First, officers try to hide the truth, but leaded by his own instinct he begins an investigation alongside the authorities. He didn't expect to find such inhuman conditions. He meets a prisoner, Camille, and his wife, Claudia, who's in French Guyana to find a way to free her husband. He decides to help her.