It's confronting stuff as a group of trouble-making Californian girls go into a tough women's prison to see what their lives could be like if they don't change their ways. The girls, aged 12 to 17, are put in the charge of an intimidating group of murderers (some of whom have frighteningly extensive facial tattoos) who leave them in no doubt about what they can expect - plenty of physical violence punctuating a life of sexual servitude. The mother of 12-year-old Cecilia is among the inmates and the distraught woman falls to her knees in tears imploring her daughter to stay out of trouble. The documentary revisits the girls a month later to see if the lessons have stuck. Not all of them have.