Nancy Byrne was the apple of her daddy’s eye. He might have been one of the most-feared gangsters in London, yet Jimmy Byrne idolised his little Nancy. But now Jimmy is dead, gunned down in cold blood - and Nancy vows to avenge his death.

She’s only twenty years old, but as the new head of the ruthless Byrne gang, running a lucrative world of drugs, sex and violence, she’s in over her head. Keeping her family together all while Joanie, her beloved grandma, falls apart, and her brother Daniel goes off the rails forces Nancy to grow up - fast.

But while Nancy takes the men on at their own game, there’s a greater danger hiding on the dark streets. Jimmy’s killer is on her trail - and will stop at nothing to shut her up.

Blood might be thicker than water, but soon, Nancy realises she can't trust anyone. Not even her own family.

Especially her own family.