The Harts' lives are at stake when a valuable ancient jade carving leads them into the heart of mysterious Macao, where they encounter a Chinese arms dealer who has become a threat to U.S. national security.

Jennifer witnesses the murder of a mob boss by his rival and the murderer vows to kill her. The police protection fails when there is an attempt on her life so Jonathan takes matters in his own hands and they decide to hide in a convent.