Contagion writer Scott Z. Burns has been hired by 20th Century Fox to pen their upcoming sequel to Rise of the Planet of the Apes.

The story will pick right back up where the last film left off, shortly after Ceaser and his army overtake the Golden Gate Bridge. As the apes grow stronger in their intelligence, humankind is threatened to the point of extinction by a new virus, which causes a social structure collapse. By the end of the film, the apes will rise as the world's new rulers.

RELATED: Disney's New Planet of the Apes Director Tells Fans Not to Worry: You're in Good Hands

Andy Serkis is set to reprise his role as Caesar, ruler of the Apes, in the Untitled Rise of the Planet of the Apes Sequel. Original director Rupert Wyatt is returning as well.

Scott Z. Burns will be working off a first draft penned by Rise of the Planet of the Apes writers Amanda Silver and Rick Jaffa.