Harry Potter, along with his best friends, Ron and Hermione, is about to start his third year at Hogwarts School of Witchcraft and Wizardry. Harry cant wait to get back to school after the summer holidays (who wouldnt if they lived with the horrible Dursleys?). But when Harry arrives at Hogwarts, the atmosphere is tense. Theres an escaped mass murderer on the loose, and the sinister prison guards of Azkaban have been called in to guard the school...