An Introduction

       Written by Veronica Roth, Divergent tells the story in an imaginary world. In the Chicago of the distant future, society has willingly segregated itself into five "factions:" Abnegation (the selfless), Amity (the kind), Candor (the honest), Dauntless (the brave), and Erudite (the intelligent). All 16-year-olds take an aptitude test revealing their true faction and then choose one to join -- regardless of which one they were born into. When Abnegation-born Beatrice Prior's results are inconclusive, her tester informs her she's a "divergent" and should never mention her results to anyone. Believing herself too selfish to be any good in Abnegation, she chooses Dauntless, where she rechristens herself Tris. 
        During the dangerous bloody Dauntless initiation process, she develops feelings for her handsome, mysterious instructor Four, who never fails to challenge her to perform her best, even as others grow jealous of her unexpected skills. And Tris beings to realize being a Divergent has both advantages and disadvantages. 


http://www.youtube.com/watch?v=loyY1To_Qk0