The US Secretary of State is on an official visit to Oslo. Among other things, the Middle East conflict will be discussed at the meeting. The Norwegian police are on high alert, helicopters are circling above the treetops, and there are fears of terrorist attacks against the minister. A terrorist group that has planned to kill the Secretary of State overpowers an innocent family in Fornebu and uses their house as a base for planning the assassination. The resourceful son of the house and his two schoolmates devise a cunning plan to stop the assassination plans. A missile system called Cobra plays an important role in the drama.