The Fellowship has broken. Frodo and Sam press on toward Mordor alone, guided — and stalked — by the treacherous Gollum, who knows the way through the Dead Marshes and to the black gate of the enemy's land. Their path will take them into the lair of a monstrous, ancient evil that guards the pass into Mordor itself.
Meanwhile Aragorn, Legolas, and Gimli pursue the orc-band that has captured Merry and Pippin, a chase that carries them into the ancient forest of Fangorn and to the towers of Isengard, where the wizard Saruman has turned traitor and the Ents, oldest of all speaking creatures, are stirred at last to war. In Rohan, the Riddermark stands on the edge of ruin under a king held captive by his own councillor's treachery, and Aragorn must help rally its people before Saruman's armies overwhelm them.
The second volume of The Lord of the Rings splits its narrative between these two threads — the small, grim journey toward Mount Doom and the mounting war across Middle-earth — building toward the fall of Isengard and the desperate defense of Helm's Deep.
