Portraying pretty Jean Evans, African adventuress and wildlife explorer, Phyillis gained her heroine title from the natives she befriends and protects. Because she alone fought and killed a man-eating black panther, Jean is named THE PANTHER GIRL OF THE KONGO. The name is no idle boast either as, in one thrilling episode, Panther Girl battles a lion to the death as well. But even the daring Panther Girl did not expect to be challenged by gigantic Claw Monsters, creatures spawned by science gone wild! A ruthless scientist, Dr. Morgan (Arthur Space), has concocted a growth serum that causes crayfish to mutate and to grow to the size of an elephant. The reason for these monstrocities is to frighten Jean and the natives out of the district where he has discovered a jungle diamond mine.