The Third book of the Bad Boy Quadrilogy, following on from "A Bad Boy" and "Ali the Peacemaker". Ali has to deal with an unexpected threat from interstellar space. Although Ali, Jack and Pete save most of the Human race, the Menace causes both tragedy and opportunity. Ali himself requires saving. Ali meets the first Extraterrestrials, and makes the second contact with an intelligent unhuman species; after have totally failed to recognise the First Contact.