David Tischman (w); Steve Conley (a); Conley, Joe Corroney (c)
During a routine visit by the U.S.S. Enterprise to Aarak 3, a major supplier of dilithium to the Federation, an attack on the royal palace reveals a group of zealots who resent the Federation's intrusion and desire a return to "the pure ways" of the ancestors. Captain Kirk must figure a way to prevent the zealots' coup while not violating the Prime Directive.