Several generations in the future following Caesar's reign, apes are now the dominant species and live harmoniously while humans have been reduced to living in the shadows. As a new tyrannical ape leader builds his empire, one young ape undertakes a harrowing journey that will cause him to question all that he has known about the past and to make choices that will define a future for apes and humans alike.
A family is executed by soldiers for cannibalism - except for the little girl, Katy Bane McKay. She is adopted by Judge Mackay and goes home with him to Canada, where she grows up with no knowledge of her family's past. Then, in the present, several deaths occur and people begin to think it's Katy Bane McKay.