The play begins with a tempest on the sea, leaving the Duke of Milan and his entourages on a deserted island. It turns out that the tempest was conjured by the magician dwelling on this island – Prospero. His daughter has a hard time understanding her father’s actions, thus he explains to her his reasoning. Twelve years ago, because he had been too obsessed with books and magic, he had neglected his duties as a duke. Because of this, he brother sought the chance and usurped his dukedom. Not only that, but he also banished him and his daughter onto this deserted island.
By bringing these people on the island is actually a part of his plan to retrieve his dukedom. Prospero also used this opportunity to set up a decent marriage for his daughter. After repeated charms and spells, Prospero succeeds in regaining his dukedom, and also secures his daughter’s marriage with Ferdinand.