Following a four-week journey from Paris to Copenhagen, Lister (Suranne Jones) finds acceptance and appreciation in Danish high society, stepping out of her sartorial comfort zone to attend a birthday ball hosted by Queen Marie (Sophie Grabol). When difficult news arrives from Shibden, Lister is faced with the decision to stay in Europe or go back home. In Scotland, a shocking discovery about Captain Sutherland (Derek Riddell) leads Ann Walker (Sophie Rundle) to make a bold resolution about her future. An unexpected visitor to the farm threatens to expose Thomas Sowden's (Tom Lewis) macabre secret.