A 707 aircraft jetliner, en route from Athens to Rome and then to New York City, is hijacked by Lebanese terrorists, who demand that the pilot take them to Beirut. What the terrorists don't realize is that an elite team of commandos have been called in to eliminate all terrorists on the jetliner.
Emily Boynton, the stepmother to three children, blackmails the family lawyer into destroying a second will of her late husband that would have freed the children from her dominating influence. She takes herself, the children, and her daughter-in-law on holiday to Europe and the Holy Land. At a dig, Emily is found dead and Hercule Poirot investigates.
Chappy Sinclair is called to gather together a mixed Soviet/U.S. strike force that will perform a surgical strike on a massively defended nuclear missile site in the Middle East. Chappy finds that getting the Soviet and U.S. Pilots to cooperate is only the most minor of his problems as he discovers someone in the Pentagon is actively sabotaging his mission.
