Gary King has an epiphany in his Alcoholics Anonymous meeting: he needs to track down his childhood friends and complete a legendary pub crawl they'd planned but never executed. The pub crawl is called The Golden Mile: twelve pints at twelve pubs, culminating at the farthest pub, The World's End. He lies and spins his wheels in order to lure in all four of his friends: Peter, Owen, Steven, and his best friend from the past, Andy. They return to Newton Haven, their small hometown, and they immediately begin to realize that things have changed. The pubs all appear exactly the same on the inside, and the people on the inside of the pubs all act oddly stilted and removed. Gary begins to drink swiftly, while his friends lament the fact that Gary has yet to grow up and face the realities of adulthood. While engaging in a bathroom scuffle, Gary unveils a horrifying truth: some, if not all, of the town's inhabitants have been replaced by robots. Once his friends learn this, they decide to proceed with the pub crawl, as if they don't know anything. However, once the robots realize Gary and the gang know the truth, the robots fight to persuade them to stay and give in to their robot rule. When Gary and his friends refuse, it's an all-out brawl, which may result in their deaths or, worse yet, the eventual robot assimilation of the entire world.