The sixth year at Hogwarts School of Witchcraft and Wizardry kicks off with a bang for young Harry Potter when he inadvertently discovers a mysterious book that sheds light on the sordid life of the evil Lord Voldemort. Preparing for inevitable battle, Harry and Dumbledore turn to professor Horace Slughorn for help in pinpointing the weakness in Voldemort's forces.
Young wizard Harry Potter starts his fourth year at Hogwarts, competes in the treacherous Tri-Wizard Tournament and faces the evil Lord Voldemort. Friends Ron and Hermione help Harry manage the pressure … but Voldemort lurks, awaiting his chance to destroy Harry and all that he stands for.
Returning for his fifth year of study at the venerable Hogwarts School of Witchcraft and Wizardry, the ever-maturing Harry Potter is stunned to find that his warnings about the return of Lord Voldemort have been ignored. Left with no choice, Harry takes matters into his own hands, training a small group of students -- dubbed "Dumbledore's Army" -- to defend themselves against the dark arts.