As the sweeping Australian saga returns, four years have passed and nurse Sarah Nordmann and her son are safe and happy, despite having to live separately from wealthy patriarch George Bligh for political reasons. George's formidable mother Elizabeth has finally found love and happiness with her new husband, while her granddaughter Anna makes waves as a single socialite. But the Blighs' contentment is threatened when George's murderous wife Regina petitions for release from the insane asylum.