With their warning about Lord Voldemorts return scoffed at, Harry and Dumbledore are targeted by the Wizard authorities as an authoritarian bureaucrat slowly seizes power at Hogwarts.
After a lonely summer on Privet Drive, Harry (Daniel Radcliffe) returns to a Hogwarts full of ill-fortune. Few of students and parents believe him or Dumbledore (Sir Michael Gambon) that Voldemort (Ralph Fiennes) is really back. The ministry had decided to step in by appointing a new Defense Against the Dark Arts teacher, Professor Dolores Umbridge (Imelda Staunton), who proves to be the nastiest person Harry has ever encountered. Harry also cant help stealing glances with the beautiful Cho Chang (Katie Leung). To top it off are dreams that Harry cant explain, and a mystery behind something for which Voldemort is searching. With these many things, Harry begins one of his toughest years at Hogwarts School of Witchcraft and Wizardry.
After returning to Hogwarts to begin his fifth year at Hogwarts, Harry Potter (Daniel Radcliffe) discovers that much of the wizarding world, including the Ministry of Magic, is in denial about Lord Voldemorts (Ralph Fiennes) return. The Order of the Phoenix, a group sworn against Voldemort, is using its vast array of wizards and witches magical abilities to combat Voldemort. Cornelius Fudge (Robert Hardy), Minister for Magic, suspects that Dumbledore (Sir Michael Gambon) is using these claims of The Dark Lords return as a means to over-throw Fudge as Minister. In retaliation, a new Defense Against the Dark Arts teacher is appointed by the Ministry in order to keep an eye on Hogwarts. This new teacher, Professor Dolores Umbridge (Imelda Staunton), implies strict new teachings and rules, forcing a group of students, under the tutelage of Harry, to form a club, by the name of "Dumbledores Army".