Dumbledore makes everyone believe that Harry died alongside his parents - the King and Queen of magical Britain - that Halloween.
James and Lily were killed by the assassin known as Voldemort, who was paid by James' cousin - Lord Lucius Malfoy, who wants the throne for his own son.
Dumbledore puts a glamour spell on Harry that will only break when he comes into contact with the royal heir's crown, and leaves him on the doorstep of a Muggle couple named Hannah and Nicholas Williams. The only thing he is left with is a note saying his name is Harry.
Harry goes through Hogwarts, believing himself to be a muggleborn. However, after graduating, while training to become an Auror, he hears the story of how the royal family was killed, and his friends suggest that, just maybe, he's the lost prince. This leads them on an adventure to uncover the truth about that Halloween night, with help from his best mate Ron and girlfriend Hermione…