The host is joined by actress Penelope Wilton and actor David Haig, while Alan plants a tree to mark the forthcoming Coronation and pays homage to the King's love of gardening. He also celebrates 70 years of Casino Royale by trying some James Bond-inspired cocktails.

Alan celebrates the Coronation with singer Sheila Ferguson, royal composer Debbie Wiseman and actor Adrian Scarborough. He toasts the monarch with the best street party cocktails, and looks back at his visit to Highgrove, where he interviewed the man who would be king.