With great power comes great responsibility -- and in "Dawn of the Planet of the Apes," that power rests not with humans, but the simians.

Dawn of the Planet of the Apes - Clip No. 2

In this exclusive behind-the-scenes video, director Matt Reeves details the lay of the land in the sequel to 2011's "Rise of the Planet of the Apes. As he explains, "It's 10 years later, and the Simian flu has wiped out most of the Earth."

The clip also introduces us to the main players in the story -- Jason Clarke's Malcolm and Keri Russell's Ellie, who want peace. "We need the apes' assistance if we're going to survive," says Jason Clarke.

Opposing them is Gary Oldman's Dreyfus, who wants to wipe out the "enemy." So, the question is, as Reeves puts it, "Can [humans and apes] exist together, or will one of them have to destroy the other?"

"Dawn of the Planet of the Apes" opens this Friday, July 11.