Our Girl is the story of Molly Dawes, born and raised in the London Borough of Newham. Molly is the eldest of five kids with little future, a difficult father and a mother who always wanted more for her. Leaving school with no qualifications, Molly has a part-time job in a local nail bar. Drunk and despondent on the evening of her 18th birthday, she throws up in the doorway of an Army Recruitment Office. She doesn't know it then, but it's an action that will change her life forever...

Three lives. Buffalo detective Lt. Cristofuoro, whose catatonic wife is in hospital, takes a special interest in Eric Komenko, a juvenile who killed his parents and will be freed on his 18th birthday. So has Lori Cranston, 15 or 16, her body fully developed and the object of lust by her boss and her mother's new boyfriend. She keeps a scrapbook about Eric, and when he's released from custody, she hides in the backseat of his car, insisting he take her with him on a trip toward Albany where he's planning to meet a girl. Cristofuoro is certain Eric will kill again, so he follows. It's clear early on that Cristofuoro's probably right, but what's Lori's motivation?

The week of his 18th birthday, Bennie, who's a waiter on a cruise ship, has a layover in Buenos Aires. He seeks out his older brother, Tetro, whom he hasn't seen in years. Tetro, who lives with Miranda, is a burned-out case; he's hot and cold toward his brother, introducing him as a "friend," refusing to talk about their family, telling Bennie not to tell Miranda who their father is. Thoughts of their father cast a shadow over both brothers. Who is he, and what past has Tetro left behind? Bennie finds pages of Tetro's unfinished novel, and he pushes both to know his own history and to become a part of his brother's life again. What can come of Bennie's pushing?

Sue, Cheryl and Lexi are best friends. They do something special every year for their birthday as they were all born on the same day. Now their 18th birthday, they set out to lose their virginity.