Overhearing their whispered plans, McCoy summons the Lawgivers. Kirk and Spock subdue them and don their robes. Marplon takes Kirk and Spock to the Hall of Audiences, where priests commune with Landru. A projection of Landru appears and threatens them. Kirk and Spock use their phasers to blast through the wall and expose a computer programmed by Landru, who died 6,000 years ago. The computer neutralizes their phasers. Kirk and Spock argue that because the computer has destroyed the creativity of the people by disallowing their free will, it is evil and should self-destruct, freeing the people of Beta III. The computer complies.