They eventually fight in Minas Tirith and help Eowyn defeat the Witch-king on the Pelennor Fields. After this they journey to Osgiliath, and with the help of Faramir, defeat Gothmog the orc commander, as well as several Ringwraiths.

They arrive at Helm's Deep and aid Aragorn, Legolas and Gimli to fight off the Uruk-hai as they storm the fortress. They continue through the land of Rohan, meeting along the way Morwen, a lady of Rohan who has lost her family to Saruman's attacks, and Eaoden, a member of Theoden's Royal Guard. In a minor change to the plotline, they help Gandalf to slay the Balrog at the Bridge of Khazad-dГ»m. After Boromir's death, the group is charged with helping what is left of the Fellowship to save the world of men in Middle-earth. Following that, they meet with Hadhod, a dwarf who is also loosely based on a character from The Lord of the Rings, the dwarf Gimli. On Berethor's way to Moria, he meets with Elegost, a ranger not entirely unlike Aragorn, another character in the books and movie. Once again, it is presumable that Berethor is thought of by Gandalf as a fallback group of protectors if the Fellowship fails to protect Frodo.

They encounter Gandalf the Grey, who tells them that Boromir is travelling with the Fellowship, and that they are headed in the direction of Moria. On his way to Rivendell, he is attacked by a group of Ringwraiths and almost killed, only to be rescued by a she-elf named Idrial who is a servant of Galadriel.

The plot of The Third Age involves Berethor, a Citadel Guard of Gondor, who is travelling to Rivendell to find Boromir, one of the nine members of the Fellowship of the Ring.

Lord of the rings the third age guide