When Tally Youngblood turns 16, she will have a surgery that will make her beautiful and she will get to spend her young adulthood partying in a tower with other Pretties. She spends her time until then playing tricks with her Ugly friend Shay and crashing the Pretty parties. Shay doesn't want to have the surgery, which is unheard of. Instead, she runs away to go live with a group of Uglies who have decided to create their own society called the Smokies. When Tally turns 16, she is told that she is not going to have the surgery until she can find her friend Shay and find where the Smokies hidden location is. Etc.
I didn't really like it. I think if it would be a great book for a preteen, which is the age group it was written for. I did attempt to read the second book in the series (There are four total: Uglies, Pretties, Specials, Extras). But it still fell flat and the dialogue and character development and the author's writing style was bland. (The sentence in Pretties, "Maybe losing blood made you starving." finally made me cringe and close the book for good).