New lower sixth John Foster's girl Lindsey James is the daughter of fairly well-to-do parents and a hard nut to crack. She has traditionally been a model student, but after her mother, Marion, is arrested on suspicion of murdering her father, Lindsey's behaviour becomes increasingly disruptive.

Lindsey is a social time bomb – going off like a rocket at the smallest infraction. Unable to face the enormity of events at home, she throws herself aggressively into the growing gang war and soon finds herself at the head of the John Foster's girls. And the only time we ever see her let down her "hard as nails" persona is when she's looking out for her little sister, Em.