The narrative chronicles the life of Dian Fossey, beginning with her childhood and initial research endeavors in Congo, leading to her significant time in Rwanda, where she dedicated 18 years to the study and conservation of mountain gorillas. Utilizing a wealth of seldom-seen archival footage, numerous letters penned by Fossey, and interviews with her friends and colleagues, the series, narrated by Sigourney Weaver, delves into the circumstances surrounding Fossey’s murder. It also examines the investigation and trial of her research assistant, Wayne McGuire, who was convicted in absentia by Rwandan authorities for her murder.