<P> At Hogwarts, Albus Dumbledore introduces ex-Auror Alastor "Mad - Eye" Moody as the new Defence Against the Dark Arts teacher . He also announces that the school will host the legendary event known as the Triwizard Tournament, in which three magical schools compete against each other in a very deadly competition by facing three dangerous challenges . The Goblet of Fire selects "champions" to take part in the competition: Cedric Diggory of Hufflepuff representing Hogwarts, Viktor Krum representing the Durmstrang Institute from Central Europe, and Fleur Delacour representing Beauxbatons Academy of Magic from France . The Goblet unexpectedly chooses a fourth champion: Harry Potter . Dumbledore is unable to pull the underage Harry out of the tournament, as the Ministry official, Barty Crouch Sr., insists that the champions are bound by a contract, and therefore, Harry has to compete . This makes Harry's best friend Ron Weasley jealous of him . </P> <P> For the tournament's first task, the champions must each retrieve a golden egg guarded by a dragon . After summoning his broomstick, Harry succeeds in retrieving the egg, which contains information about the second challenge . Shortly after, another event known as the Yule Ball, a formal dance takes place; Harry's crush Cho Chang attends with Cedric, and Hermione Granger attends with Viktor, which makes Ron jealous of Viktor . During the second task, the champions must dive underwater to rescue their mates . Harry comes out in third place, but is placed second behind Cedric due to his "moral fibre" after saving Fleur's sister Gabrielle as well as Ron . Afterwards, Harry finds the corpse of Barty Crouch Sr., then visits Dumbledore at his office, and while waiting for him, he discovers a Pensieve, which holds Dumbledore's memories . Inside it, Harry witnesses a trial in which Igor Karkaroff (Durmstrang Institute's Headmaster) confesses to the Ministry of Magic names of other Death Eaters, after Voldemort's defeat . When he names Severus Snape as one, Dumbledore vouches for Snape's innocence; Snape turned spy against Voldemort before the latter's downfall . As Karkaroff names Barty Crouch Jr., a devastated Barty Crouch Sr. has his son imprisoned in Azkaban . After exiting the Pensieve, Harry deduces that the man he has seen in his dreams with Voldemort is Barty Crouch Jr . </P> <P> In the third and final task, the champions enter a hedge maze, and must reach the Triwizard Cup . Viktor, under the influence of the Imperius Curse, incapacitates Fleur . After Harry saves Cedric when the maze attacks him, the two claim a draw and together grab the cup, which turns out to be a Portkey, and transports the two to a graveyard, where Pettigrew and Voldemort are waiting . Pettigrew kills Cedric with the Killing Curse and performs a ritual using a bone of Voldemort's father, Pettigrew's flesh and Harry's blood, which rejuvenates Voldemort, who then summons the Death Eaters . Voldemort releases Harry in order to beat him in a duel to prove that he is the better wizard . Harry, unable to defend himself, tries the Expelliarmus charm at the same moment that Voldemort attempts the Killing Curse . Their wands get into a beaming tug - of - war, and Voldemort's wand is forced to disgorge the last spells it performed . This results in the spirits the people he murdered materialising in the graveyard, including Harry's parents and Cedric . This provides an ample distraction to Voldemort and his Death Eaters, allowing Harry to escape with Cedric's body by grabbing the Portkey . </P> <P> Upon his return, Harry tells Dumbledore that Voldemort has returned and is responsible for Cedric's death . Moody takes a devastated Harry back to his office to interrogate him about Lord Voldemort, where he inadvertently blows his cover when he asks Harry whether there were "others" in the graveyard--despite Harry never having mentioned a graveyard . Moody then reveals that he had submitted Harry's name to the Goblet of Fire, and that he had been guiding and manipulating Harry throughout the tournament to ensure that he would win, so Voldemort would take Harry's blood in order to return . Moody attempts to attack Harry, but Dumbledore, Severus Snape, and Minerva McGonagall intervene and subdue Moody . The teachers force Moody to drink Veritaserum, a truth - telling potion, which reveals that he is not really Moody, and that the real Moody is imprisoned in a magical trunk . The false Moody's Polyjuice Potion wears off, and he is revealed as Barty Crouch Jr., a loyal Death Eater . Crouch Jr. is sent back to Azkaban, from which he had escaped . </P>

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