When Mary finds herself in a public scandal and the family faces financial trouble, the household grapples with the threat of social disgrace. The Crawleys must embrace change with the next generation leading Downton Abbey into the future.

When her father unexpectedly passes away, young Ella finds herself at the mercy of her cruel stepmother and her daughters. Never one to give up hope, Ella's fortunes begin to change after meeting a dashing stranger in the woods.