As fearsome creatures go, apes with bad attitudes are right up there.
Make those apes intelligent, plentiful and determined to fight for their right to freedom and you have an intimidating group of adversaries.
Following The Rise of the Planet of the Apes (2011), the sequel finds the humans left on Earth struggling for survival after a man-made virus has killed billions of people around the globe.
The apes, which escaped from captivity in the original movie, have now made themselves a home in the forest outside San Francisco and are happy to leave alone the humans in the city. Led by the human-raised chimp Caesar, they have a good existence.
Everything changes when the humans encounter the apes in the forest while making their way to a dam that is crucial to their ability to make power.