The Quinns are one of the most feared criminal gangs in London's East End.

So the reaction of Joe Quinn to the news that his daughter Lynsey is involved with a policeman is predictable and swift, and a pregnant Lynsey finds herself out on the street, bruised and alone.

At the age of eleven, Lynsey's daughter Helen is returned to the clan. Hated by her grandfather, loved only by her uncle, she struggles to fit into a world she doesn't understand. As warring factions battle for control of the East End, tragedy is about to strike again.

How can Helen survive? And who can she trust when the Quin family's criminal past comes back to haunt her?