Mad-Eye Moody is actually Barty Crouch Jr. in disguise.
Peter Pettigrew kills Cedric Diggory.
Graveyard wand show-down between Voldemort and Harry. Portkey trophy allows escape.
The innocent Hufflepuff gets kill.
Harry lets the Hufflepuff be killed because he took Harry's crush to the Yule Ball.
The weird-eye guy is a bad one
Harry's blood is used to get voldemort back to life