As the net tightens on the smuggling gang, Jem is determined to discover the identity of the man who gives Joss his orders, but his brother is unwilling to give up his boss's name. With things falling apart, Mary is desperate to save her Aunt Patience. However, as she tries to uncover the truth, she begins to wonder if there is anyone left that she can trust. Jessica Brown Findlay, Joanne Whalley, Matthew McNulty and Sean Harris star in the period drama. Last in the series.