An old Jewish woman dies under mysterious circumstances and Yeager, her financial advisor, is stunned to learn that he has been named her sole heir. The eponymous navigator is revealed to be the father of the two brothers. He is dying, suffering from Alzheimer's and PTSD. Hunter, famous for self-control, takes enormous risks and begins to lose his grip, showing symptoms of psychological decomposition like his father. No one knows where Hunter plans to get the cash for the ViroSat deal. Yeager, Hunter, and Toussaint are forced to reconcile and cooperate despite difficult personal history; Hunter was responsible for Yeager and Toussaint divorcing.
