Once the Siege of Helm's Deep is resolved, GameCube players are prompted to swap to to continue the journey into Osgiliath and the Pelennor Fields.
: An Elven servant of Galadriel who rescues Berethor from Ringwraiths. Elegost : A Dúnedain Ranger and expert archer. Hadhod : A Dwarf warrior seeking his kin in Moria. Lord Of The Rings The The Third Age - Disc #1
: The climax of Disc #1 takes place at the Hornburg. Players assist the movie's main heroes in defending the fortress, with major set-piece battles against Uruk-hai Berserkers and Trolls. Once the Siege of Helm's Deep is resolved,
: The adventure begins in the wilderness before plunging into the Mines of Moria . Players navigate the dark halls, battle Cave Trolls, and eventually fight alongside Gandalf against the Balrog at the Bridge of Khazad-dûm. Hadhod : A Dwarf warrior seeking his kin in Moria
While most Lord of the Rings games put players in the boots of Aragorn or Legolas, The Third Age introduces a "second fellowship" led by , a Captain of Gondor. Disc #1 establishes this new cast as they follow in the literal footsteps of the main Fellowship, often arriving at iconic locations just moments after Frodo and company have departed. Key Protagonists on Disc 1 : Berethor : A Gondorian soldier seeking Boromir.
: Characters earn skill points by repeatedly using specific types of attacks (e.g., Sword Craft or Shadowcraft), which unlocks more powerful abilities.
: After escaping Moria, the party travels through the rocky mazes and vast plains of Rohan. This section focuses on gathering scattered Rohan soldiers and confronting Gríma Wormtongue at Snowbourne.