Ellen Burton arrives in Africa to join Dr. Mary as her nurse, bringing modern medicine to the native peoples. Lonni Douglas, an animal wrangler and fortune hunter, agrees to take her upriver, despite his misgivings about her suitability for Africa. They battle escaped gorillas, hostile natives, infected lion wounds, and hostile witch doctors to reach their destination and on the way, they fall in love. Will their contrasting interests doom their romance?
Susan Hayward
as Ellen Burton
Robert Mitchum
as John 'Lonni' Douglas
Walter Slezak
as Huysman
Timothy Carey
as Jarrett
Mashood Ajala
as Jacques
Joseph C. Narcisse
as Utembo
Elzie Emanuel
as Kapuka
Otis Greene
as Bakuba boy
Everett Brown
as Bakuba King (uncredited)
Michael Ansara
as De Gama (uncredited)
