Too beautiful. Too smart. Too perfect. In a crumbling futuristic Las Vegas, where the rich choose the characteristics of their children like dishes on a drive-thru menu, seventeen-year-old Sienna Preston stands out from the crowd. Since she is a normal girl surrounded by genetically modified teenagers, all her imperfections are visible to the naked eye. But after her father's death, everything she has ever known and loved changes in an instant. With little ability to provide for her family, Sienna clings to the two things that come easiest to her - lying and stealing. But not all of the hired thief's tasks go according to plan. When a stolen computer chip is intercepted in transit to a customer, she finds herself tied up with a corrupt official who uses her past as a thief as leverage, her mother as a hostage, and the genetically modified cover guy she's in love with as bait to save her. mother, Sienna has only one option - to join the extremist organization "Fringe", whose leader is too sexy to be bad. The problem is that these revolutionaries are not who they seem, and the secrets they keep may be more dangerous than Sienna realized. After all, she must be willing to risk everything to save the one thing that matters most.