meeting of international politicians is to take place in England to discuss the problems of disused nuclear weapons falling into terrorist hands. On a mission in Bulgaria, a CI5 agent sees a dummy run by terrorists, who plan to assassinate the politicians. CI5 must piece together what information they gain from the wounded agent, and try to track down where this top-secret conference is.

An Albanian minister, Eliz Risha, is held hostage at an English television station along with the crew and production staff. CI5 are called in to deal with the terrorists, whose leader Panvos accuses Risha of committing atrocities. Despite the minister's denials, it is not clear if he is indeed a war criminal

Curtis and Keel are called in to investigate reports of a U.F.O. after a scientist is attacked by a strange light from space. Backus goes undercover as a journalist.