For the first time in their memory, humans have a chance to create a real civilization on this planet ruled by apes. Daena's mother Sarai brings together several warring clans of humans to build a human city like no other. But while the human faction gets stronger, new tensions between apes and humans continue to fester. Ironically, Ari's faith in humans and her involvement in their cause actually leads the ape military straight to their hidden city! Will the humans be able to fight the mighty ape military led by Thade and his young protege Attar? Or are the humans destined to fall once again into chaos?