Lady Agnes returns home determined to heal the rift in her marriage.
Sir Hallam, too, is desperate to make amends and does all in his power to rectify his personal and professional mistakes. But a shocking revelation leaves the pair reeling – and a cataclysmic turn of events changes the landscape of 165 Eaton Place forever…
Downstairs, as war approaches, Harry and Beryl face a ticking clock to get their affairs in order.
Meanwhile, after his behaviour the previous evening, Mr Pritchard leaves 165 Eaton Place in shame and Johnny is left to run the household. But when Mr Prichard’s absence becomes more prolonged the house is thrown in to chaos and Johnny seeks counsel from a familiar face.