with the Gorn, but receives no response. The Gorn tracks down Kirk, and Kirk realizes he is outmatched physically and relies on his agility to outrun the Gorn. Kirk gets caught in a rope trap set by the Gorn that injures his leg and slows him down. The Gorn finally communicates with Kirk via the translation device and offers to put him out of his misery. Kirk accuses the Gorns of being butchers, but the alien defends their attack on Cestus III, stating the outpost had been built in what the Gorns considered to be their territory. They viewed the Federation's presence in this part of space as an intrusion and a possible prelude to full-scale invasion. Trying to stay ahead of the Gorn, Kirk discovers numerous valuable minerals and resources on the planet, seemingly useless at this point. He is inspired upon finding stalks of bamboo and raw chemicals that can be mixed into a black powder formula. He constructs a makeshift weapon, using chunks of diamond as ammunition. Kirk barely completes the assembly as the Gorn arrives and fires it, severely wounding the Gorn. As Kirk prepares to deal a death blow, he considers the Gorn's claims that the attack on Cestus III was only in self-defense, and allows him to live. Suddenly, the Gorn disappears, and a Metron appears to Kirk, congratulating him on not only winning the battle but showing the advanced trait of mercy for one's enemy. Kirk declines the Metrons' offer to destroy the Gorn ship, leading the Metron to comment that "you are still half savage, but there is hope", and that the Federation should seek out the Metrons again in several thousand years time. Suddenly Kirk finds himself back aboard Enterprise, his injuries healed, and the crew finds itself 500 parsecs from Metron space, the Gorn ship nowhere in range. Production The episode was filmed in part on location at Vasquez Rocks, which was subsequently used as a shooting location in other Star Trek episodes and films. The episode marked the directorial debut of Joseph Pevney, who was hired by Gene L. Coon. The Gorn captain's vocalizations were provided by actor Ted Cassidy, who also appeared in person in the Star Trek episode "What Are Little Girls Made Of?" and provided the menacing voice of Balok in the episode "The Corbomite Maneuver". The Gorn was portrayed by stuntmen Bobby Clark and Gary