Undercover agent Mark Sheldon gets paroled to a remote tropical island with a diamond mine manned by slave labor run by sadistic Stephen Danel.Undercover agent Mark Sheldon gets paroled to a remote tropical island with a diamond mine manned by slave labor run by sadistic Stephen Danel.Undercover agent Mark Sheldon gets paroled to a remote tropical island with a diamond mine manned by slave labor run by sadistic Stephen Danel.