The Windsors return for the royal wedding. Harry (Richard Goulding) and Meghan (Kathryn Drysdale) take Charles (Harry Enfield) to America to meet Meghan's mum, Doria (Suzette Llewellyn), but Charles fails to reassure her about Meghan marrying into the royal family. Wills (Hugh Skinner) is forced to protect his subjects from Windsor's evil Trampcatcher (Paul Kaye). Beatrice (Ellie White) is swept off her feet by a hunky political firebrand. Fergie (Katy Wix) finds an ingenious way to get a wedding invitation. Camilla (Haydn Gwynne) continues to cause trouble for the junior royals. And Pippa (Morgana Robinson) has a violent reaction to Harry's marriage.