For the tournament's first task, the champions must each retrieve a golden egg guarded by a dragon. Harry summons his broomstick to retrieve the egg, which contains information about the second challenge. The Yule Ball takes place, during which Harry's crush Cho Chang attends with Cedric, and Hermione Granger attends with Viktor, which makes Ron Weasley jealous. During the second task, Harry comes in second, behind Cedric. Afterward, Ministry official Barty Crouch, Sr. is found dead by Harry. In the third and final task, the competitors are placed inside a hedge maze and must reach the Triwizard Cup. Viktor, under the Imperius curse, incapacitates Fleur. After Harry and Cedric save each other, the two claim a draw and grab the cup together, which turns out to be a Portkey and transports the two to a graveyard, where Wormtail and Voldemort are waiting. Wormtail kills Cedric with a spell and performs a ritual that rejuvenates Voldemort, who then summons the Death Eaters. As Harry battles Voldemort, his wand forces Voldemort's to disgorge the spirits of the people Voldemort has most recently murdered, including Harry's parents and Cedric. Harry is briefly protected by the spirits and escapes with Cedric's body.
Upon his return, Harry tells Dumbledore that Voldemort has returned and is responsible for Cedric's death. Mad-Eye takes Harry back to his home and locks the door and reveals it was he who put Harry's name in the Goblet, cursed Viktor and was responsible for all the things gone wrong and tries to attack Harry. Dumbledore, Snape, and McGonagall break down his door and force him to drink a truth telling potion. It's also revealed that he is not "Mad-Eye" Moody; the real one is imprisoned in a magical trunk. The false Mad-Eye's Polyjuice Potion wears off and he is revealed as Barty Crouch Jr., working for Voldemort.
Soon after, Hogwarts, Durmstrang and Beauxbatons gather to say farewell to Cedric.