The Lord of the Rings: The Return of the King (2003)

The hobbit Sméagol is fishing with his cousin Déagol, who discovers the One Ring in the river. Sméagol’s mind is ensnared by the Ring, and he kills his cousin for it. Increasingly corrupted physically and mentally, he retreats into the Misty Mountains and becomes known as Gollum. Centuries later, during the War of the Ring, Gandalf leads Aragorn, Legolas, Gimli, and King Théoden of Rohan to Isengard, where they reunite with Merry and Pippin. Gandalf retrieves Saruman’s palantír, and the group returns to Edoras to celebrate their victory at Helm’s Deep. Pippin looks into the palantír, seeing Sauron and a burning tree. Gandalf deduces that the enemy plans to attack Gondor’s capital Minas Tirith; he rides there to warn Gondor’s steward Denethor. Pippin, who accompanies him, swears fealty to Denethor, whose now-dead heir Boromir had saved his life; on Gandalf’s instruction, he triggers the lighting of the beacons, which call for help from Rohan.

Frodo, who carries the Ring, and Sam continue their journey towards Mordor, unaware that Gollum, now their guide, plans to betray them and take the Ring for himself. The trio witness the Witch-king of Angmar, lord of the nine Nazgûl, setting off towards Gondor with his army of Orcs. Gollum conspires to frame Sam for eating food supplies and desiring the Ring; influenced by the growing power of the Ring, Frodo is taken in by the deception, and orders Sam to go home. Gollum then tricks Frodo into venturing into the lair of the giant spider Shelob. Frodo narrowly escapes and confronts Gollum, who falls down a chasm after a scuffle. Shelob discovers, paralyzes, and binds Frodo, but is wounded and driven away by a returning Sam, who, mourning Frodo’s apparent death, takes the Ring. Sam realizes his mistake when a group of Orcs takes Frodo captive, but manages to rescue Frodo as the Orcs fight among themselves. Now inside Mordor, the hobbits continue towards Mount Doom, their destination.