Ep 0. The Cuckoo

Lady Persie's life has become increasingly complex, as she continues her illicit affair and pursues her right-wing political interests with little regard of the potential danger to those she loves. Meanwhile, Lady Agnes prepares for motherhood by having her picture taken by celebrated photographer Cecil Beaton and Sir Hallam finds himself dragged into the abdication crisis facing the monarchy and makes a discovery that will change his life forever.