The Return of the King is the final installment in the Lord of the Rings trilogy, following The Fellowship of the Ring and The Two Towers. The film picks up immediately after the events of The Two Towers, with Frodo, Sam, and Gollum continuing their journey to Mount Doom to destroy the One Ring.
Meanwhile, Aragorn, Legolas, and Gimli lead the armies of Rohan and Gondor in a desperate battle against Sauron's army at the Black Gates of Mordor. Gandalf leads the defense of Minas Tirith, the capital city of Gondor, against Sauron's forces, which are led by the Witch-king of Angmar.
As the battle rages on, Aragorn must confront his destiny as the rightful heir to the throne of Gondor. He must inspire his army to fight on despite overwhelming odds, with the hope of not only defeating Sauron's army but also bringing peace and unity to Middle-earth.
Meanwhile, Frodo, Sam, and Gollum navigate the treacherous terrain of Mordor, avoiding obstacles such as lava and Orc armies. As they near Mount Doom, Gollum's true intentions are revealed, and he attacks Frodo to claim the Ring for himself. Sam intervenes and fights off Gollum, allowing Frodo to finally destroy the Ring and ultimately defeat Sauron.
The film concludes with the resolution of the various character arcs, including the coronation of Aragorn as the King of Gondor and the return of the hobbits to the Shire. The Lord of the Rings: The Return of the King went on to win eleven Academy Awards, including Best Picture.