In a near future in which terrorism is commonplace but memories of horrors witnessed can be obliterated by a pill, teens Nora, Winter, and Micah, create an underground comic to share with their classmates the experiences they want to remember.

In a future London that is completely underwater, where adults and children are subject to different police forces, Jemima Mallard, the daughter of an adult officer, finds herself in trouble with the juvenile police who suspect her of contact with a terrorist known as Father Thames.

"Tiburones. Asesinos. Bombas nucleares ... y un diabólico plan para destruir el mundo. Alex Rider, involuntario superespía adolescente, le es útil al MI6 -el servicio secreto británico- de un modo en el que un adulto nunca podría serlo. Y ahora necesitan su ayuda una vez más. Sin embargo, una rutinaria misión de reconocimiento en los campeonatos de tennis de Wimbeldon pone en marcha una terrible cadena de acontecimientos que obliga a Alex a...