In an English boys' boarding school, social hierarchy reigns supreme and power remains in the hands of distanced and ineffectual teachers and callously vicious prefects in the Upper Sixth. Three Lower Sixth students, Wallace, Johnny and leader Mick Travis decide on a shocking course of action to redress the balance of privilege once and for all.

A highly imaginative boy involves his friends in a series of false alarms, with the result that nobody will come to his aid when he is involved in a dangerous situation.

In Budapest, two rival gangs of young boys lay claim to a vacant lot. The hostilities escalate yet never quite boil over into actual violence.

Blinker, so named because he blinks whenever he has a bright idea for a new invention, is the son of an eccentric Professor who is developing a top secret Pulsar Crystal X. Blinker's inventions help him to be a successful goalkeeper and to keep an eye on The Masons gang - and some real crooks.