"The Lord of the Rings: The Return of the King" (2003) ends with Frodo Baggins destroying the One Ring at Mount Doom, Sauron's defeat, and Aragorn's crowning as King of Gondor. Peter Jackson's film closes the trilogy by resolving both the war for Middle-earth and the personal toll the quest takes on Frodo, who ultimately cannot return to an ordinary life in the Shire. The film splits its runtime between two linked stories: the siege of Gondor and the final battle against Sauron's armies, and Frodo and Sam's journey through Mordor to destroy the Ring. Gandalf, Aragorn, Legolas, Gimli, and the rest of the Fellowship fight to buy time, while Frodo, Sam, and Gollum push toward Mount Doom, where the Ring's fate is actually decided.
Table of Contents
- How does the war for Gondor unfold?
- What happens with Frodo, Sam, and Gollum in Mordor?
- What actually happens at Mount Doom, and what does the ending mean?
- How does the film resolve its characters after the war?
- Frequently Asked Questions
How does the war for Gondor unfold?
Sauron's forces, led by the Witch-king of Angmar, lay siege to Minas Tirith, the capital of Gondor. Gandalf and Pippin arrive ahead of the attack to warn the city's steward, Denethor, whose grief over his elder son Boromir's death and despair at the war has left him unfit to lead. Denethor refuses to light the beacons calling for aid from Rohan until Pippin lights them himself, and Gandalf effectively takes command of the city's defense in Denethor's place. Théoden, King of Rohan, answers the beacons and rides to Gondor with the Rohirrim, arriving at the climax of the siege to break the assault on the Pelennor Fields.
Éowyn, Théoden's niece, disguises herself as a soldier to join the battle after being forbidden to fight. She kills the Witch-king with help from the hobbit Merry, fulfilling a prophecy that no man could slay him — Éowyn, a woman, is able to do what no man could. Denethor, believing all is lost, attempts to burn himself and the unconscious Faramir, his remaining son, on a funeral pyre. Gandalf and Pippin intervene to save Faramir, and Denethor dies in the fire himself. Aragorn, revealing himself as the heir of Isildur and rightful king, rallies the remaining forces, and with reinforcements from the Army of the Dead — ghostly warriors bound by an ancient oath, whom Aragorn frees after they fight for him — the combined armies rout Sauron's forces at Gondor.
What happens with Frodo, Sam, and Gollum in Mordor?
While the battles rage, Frodo and Sam continue toward Mount Doom guided by Gollum, the creature once known as Sméagol who is still obsessed with reclaiming the Ring he once possessed. Gollum manipulates Frodo into distrusting Sam, convincing Frodo that Sam wants the Ring for himself, which leads Frodo to send Sam away. Sam, suspicious of Gollum's motives, eventually catches up and rescues Frodo after Gollum attacks him.
The weight of carrying the Ring grows heavier the closer Frodo gets to Mount Doom, both physically and mentally — the film shows it dragging him down and eroding his will. Sam carries Frodo part of the way up the mountain when Frodo can no longer walk, delivering the line that captures the film's theme of endurance: he cannot carry the Ring for Frodo, but he can carry Frodo. Aragorn and the other Gondor and Rohan forces march to the Black Gate of Mordor as a deliberate diversion, drawing Sauron's attention and remaining armies away from Mount Doom so Frodo and Sam have a chance to complete their task unseen.
What actually happens at Mount Doom, and what does the ending mean?
At the Cracks of Doom inside Mount Doom, Frodo reaches the point where he must throw the Ring into the fire to destroy it. Instead, overcome by the Ring's corrupting power after carrying it so long, he puts it on and claims it for himself, refusing to complete the task he set out to do. This moment is the film's central statement about the Ring: its power to corrupt is strong enough to overcome even the most resistant bearer, and willpower alone was never going to be enough to defeat it. Gollum attacks Frodo to take the Ring back, biting off Frodo's finger to get it.
Gollum celebrates his victory but then stumbles and falls into the fire below, taking the Ring with him. The Ring's destruction happens by accident and struggle, not by Frodo's own choice — the quest succeeds despite Frodo's failure, not because of his triumph over the Ring's temptation. With the Ring destroyed, Sauron's power collapses instantly: his armies lose coordination and are easily defeated, and his fortress and physical form disintegrate. At the Black Gate, Aragorn and his allies are saved from being overwhelmed by Sauron's remaining forces because the Ring's destruction removes the power holding those armies together. Frodo and Sam are rescued from the collapsing mountain by Gandalf, riding the eagle Gwaihir.
How does the film resolve its characters after the war?
Aragorn is crowned King of Gondor in a ceremony attended by the surviving members of the Fellowship, fulfilling his arc from reluctant heir to accepted ruler. He is reunited with and marries Arwen, the elf he loves, who had earlier given up passage to the immortal lands to stay with him. The film shows the hobbits — Frodo, Sam, Merry, and Pippin — returning home to the Shire, where life continues as if the outside world's great war barely touched it. Frodo, however, cannot settle back into ordinary life.
He is shown still suffering physically and emotionally from the wounds and trauma of carrying the Ring, unable to find peace in the Shire the way his companions can. This sets up the film's final act of resolution: Frodo departs Middle-earth by sailing to the Undying Lands (Valinor) from the port of the Grey Havens, accompanied by Gandalf, Bilbo, and the elves, leaving Sam, Merry, and Pippin behind. The film's final scene follows Sam home to his family, closing the story on the idea that Frodo's sacrifice allows ordinary life — represented by Sam's wife, children, and home in the Shire — to continue for everyone else. The ending frames the cost of the war as uneven: some can return to normal life, and some, like Frodo, are changed too permanently to do so.
Frequently Asked Questions
Did Frodo throw the Ring into the fire himself?
No. Frodo put the Ring on and claimed it instead of destroying it; Gollum bit off his finger to take it back, then fell into the fire with it, destroying it by accident.
Why does Frodo leave the Shire at the end?
The film shows him unable to recover from the physical and psychological wounds of carrying the Ring, so he sails from the Grey Havens to the Undying Lands with Gandalf and Bilbo rather than remain in ordinary life.
What breaks the siege of Gondor?
Théoden's Rohirrim arrive to break the assault on the Pelennor Fields, and Aragorn later arrives with the Army of the Dead to finish routing Sauron's remaining forces.
Why do Sauron's armies collapse right after the Ring is destroyed?
Sauron's power and his armies' coordination are tied directly to the Ring; once it's destroyed, his control collapses instantly, leaving his forces disorganized and easy to defeat.