This movie continues the Harry Potter series and further pushes Harry to his destiny. This movie begins with Harry bleeding in front of the Ministry of Magic. Harry follows Dumbledore around looking for Professor Slughorn. Dumbledore had a desire to have Slughorn teach again. After reluctantly accepting the position, Harry goes out looking for his books when he sees Malfoy hanging around some Death Eaters. Ron, Hermonie and Harry all assume that Draco has become a Death Eater and desired to plot and kill Dumbledore. In the beginning of the movie Harry is depicted as very suspicious(almost like a detective) constantly checking and searching for evidence to prove his suspicions. As the movie progress his suspicions increases and all the evidence leads confirms it.
In Ron's life he begins to become more confident in his Quidditch abilities. He becomes the brand new Keeper for Griffyndor and was even snuck an good luck charm(by Harry) before his first game. After winning the game, Ron is shown to be on cloud nine in the middle of the party dancing and enjoying himself. All of a sudden Lavender Brown and Ron are kissing in the middle of the party while everyone is cheering them on. Hermonine is heartbroken by the event and fees to the bottom of the stairs. Harry follows her and tries to comfort her while relaying his feelings for Ginny(Ron's younger sister). The next scene shows Harry spending christmas with the Weasley's(whose house gets burnt down by Death Eaters).
Towards the end of the movie all signs of Malfoy being a death eater has been verified and Dumbledore's life is in danger. Being already aware of this Dumbledore asks Harry to journey with him to a place that Voldermort may have left a Horocrux(a fragment of his soul, placed within a object). When they arrive the scene is very eerie and they must board a boat to travel to the place where the Horocrux is located. The Horocrux is submerged in liquid that Albus must drink. The liquid causes him to go insane temporarily while bringing up the dead from the bottom of the sea. Harry battles them off until Albus regains consciousness and frees them. At the end of the movie Malfoy is supposed to kill Dumbledore but gets cold feet about it. Snape returns and ultimately kills Dumbledore!