Ten years after the worldwide pandemic of the deadly virus ALZ-113, the human civilization is completely destroyed. In San Francisco, Caesar has become the leader of evolved apes and has a son, Blue Eyes. When Blue Eyes and his friend Ash stumble with a group of humans under the command of Malcolm, there is a friction between them. However, Caesar orders the human to return to the derelict San Francisco City. Then he goes with a group of apes to the city to tell them to stay there since they do not want war against the human, despite the hatred of his second in command Koba against humans. However Malcolm returns alone to the woods to meet Caesar to explain that they need to repair the hydroelectric dam to recover power in the city to save the survivors. Caesar accepts his argument and let him work with his family and a few technicians in the dam. Meanwhile the leader of the humans Dreyfus decides to arm the survivors since he does not believe in the apes. However Koba wants the war against mankind and he provokes a situation of intolerance and consequent confrontation.