Global warming and government regulations led to a second civil war, destroying the midsection of the former U.S. Rebuilt from the ashes, The Union is arranged around the periphery of the war-ravaged Ruins. 17-year old Evan Taylor lives a seemingly idyllic life in the Union, spending her summer with her two best friends and falling in love for the first time with the boy of her dreams. When Evan discovers that the history of the Union may actually be a work of fiction, she is pursued by those who want to keep that knowledge a secret. As she fights for her survival and continues to seek the truth, she finds herself falling for someone she never would have imagined. When she uncovers a plot that may lead to a third civil war, she is forced to choose between her two lives and her two loves.