Caesar and his tribe of apes are thrust into a brutal war with a human army led by the merciless Colonel. After enduring devastating losses, Caesar is consumed by grief and anger, struggling to control his darker impulses. His quest for vengeance becomes personal, and he embarks on a dangerous journey that pushes him to his limits. As the final confrontation between Caesar and the Colonel looms, the two leaders face off in a monumental battle that will decide the survival of their respective species and the future of the Earth.