Frodo Baggins and the other members of the Fellowship continue on their sacred quest to destroy the One Ring--but on separate paths. Their destinies lie at two towers--Orthanc Tower in Isengard, where the corrupt wizard Saruman awaits, and Sauron's fortress at Barad-dur, deep within the dark lands of Mordor. Frodo and Sam are trekking to Mordor to destroy the One Ring of Power while Gimli, Legolas and Aragorn search for the orc-captured Merry and Pippin. All along, nefarious wizard Saruman awaits the Fellowship members at the Orthanc Tower in Isengard.

In the San Fernando Valley in 1977, teenage busboy Eddie Adams (Mark Wahlberg) gets discovered by porn director Jack Horner (Burt Reynolds), who transforms him into adult-film sensation Dirk Diggler. Brought into a supportive circle of friends, including fellow actors Amber Waves (Julianne Moore), Rollergirl (Heather Graham) and Reed Rothchild (John C. Reilly), Dirk fulfills all his ambitions, but a toxic combination of drugs and egotism threatens to take him back down.