During a visit to his old neighborhood, Gerry meets a childhood friend who needs his help. Ralph Paxton's grandson, a talented young architect, died in a fall from an abandoned building; Ralph is convinced he was murdered. Meanwihile, Gerry objects to his daughter's fiancé, and Sasha is forced to work wtih her ex-husband, Ned Hancock

Thirty years after the death of a suspected terrorist, the man's daughter receives an anonymous note claiming he was murdered, Clues lead the team to the Greenham Common anti-nuclear prostests of the 1980's. Sasha had dinner with Ned, who's angling for a reconcilliation