Lord of The rings, The Two Towers.

well im not done yet :P

Boromir is killed and Merry and Pippin are kidnapped by Saruman's Orcs. Aragorn, Gimli, and Legolas pursue the Orcs and meet Gandalf, who is now "Gandalf the White". Merry and Pippin escape when the Orcs are slain by the Rohirrim and find themselves in Fangorn where they befriend the tree-like Ents. Gandalf travels with the others to rouse Théoden King of the Rohirrim to take a stand against Saruman's armies at Helm's Deep. At the subsequent Battle of Hornburg, Saruman's armies are defeated.
Merry and Pippin motivate the Ents to destroy Saruman's remaining forces at Isengard. Gandalf, Théoden and the others head to Isengard. Saruman refuses to see his error and Gandalf strips Saruman of his rank and most of his power. Pippin looks into a seeing-stone Sauron used to communicate with Saruman — alerting him to the presence of the hobbit. Gandalf takes Pippin to Gondor.
Frodo and Sam capture Gollum and convince him to guide them to Mordor. They travel a long and hard road, briefly aided by Boromir's brother Faramir. Gollum betrays Frodo by leading him to the great spider Shelob in the caves above Minas Morgul. Frodo is left unconscious by Shelob's bite, but Sam fights her off using Sting and the vial of Ëarendil's star — one of Galadriel's gifts. Sam, believing Frodo to be dead, takes the Ring and Frodo is carried to Cirith Ungol by Orcs.
Sauron begins his military assault upon Gondor, with the Witch-king of Angmar, greatest of the Ringwraiths, leading a huge army into battle against Gondor.