Liverpool 1962. A place and time of danger and passion. A thrilling new music is bursting on to the grey streets of the post-war city: a music that electrifies, a music that promises to change everything. But in Cuba, on the other side of the earth, nuclear tensions are at breaking point. The end of the whole world could be just days away. At the heart of it all is fourteen-year-old Laura Mann. She's on the run, hunted by strange forces fighting over the future of humanity. Laura is the H-Bomb Girl. And Laura's about to discover that her own life is at stake - in ways she could never have imagined...