Ken is really excited about his long-lost sister arriving, but it turns out that billionaire Ivy Mittlefart might not really want to get to know the Thompsons at all.

A pregnant mother with a chronic heart condition falls unwell, Nancy grows suspicious of a young father’s erratic behaviour, and Matthew prepares for a visit from his father.

A secret World War II document opens Elizabeth’s eyes to grim realities about a family member. The Duke of Windsor campaigns to re-enter public life.