The handlers of Philip and Elizabeth, Frank Langella’s Gabriel and Margo Martindale’s Claudia, decide tonight what to do with the news that Philip’s long-estranged, now-grown son from a former relationship has smuggled himself into the United States, and is trying desperately to track down his father. Do they tell Philip (Matthew Rhys) and Elizabeth (Keri Russell), who have their own teen children together in America? Do they tell only Philip? Only Elizabeth? Or do they just kill the young man, rather than complicate things?