Caesar and the Apes are forced to lead a battle they do not want against an army of humans led by a ruthless Colonel. The Monkeys are experiencing considerable losses and Caesar, in his quest for revenge, will have to fight against his blackest instincts. At the end of a journey that will lead him to a face-to-face meeting with the Colonel, the Monkeys and the Humans are going to wage a merciless war at the end of which only one of the two species will survive – and will dominate the planet.