Sinead is on holiday from Ireland, visiting a castle in England. There, the famous sword Excalibur is on display, and tourists flock to have their picture taken trying to pull it out of the stone.
Astonishingly, when it comes to Sinead's turn, the sword comes free. Soon the crowds are shouting, "All hail Queen Sinead!"
The Prince of England, however, is very worried about this shocking development, and makes Sinead an offer she can't refuse.
Or can she?
Sinead's fun encounter with Merlin and Arthurian magic is also a real test of her character.