PLATO'S STEPCHILDREN (S3/E10). I couldn't find it. The action beginning at about 47:30 minutes in. Star Trek-The Original Series.
Rare 1968 STAR TREK TOS 35mm Film Clip WORLD IS HOLLOW Spock Kirk's Quarters K13
Rare 1968 STAR TREK TOS 35mm Film Clip WORLD IS HOLLOW Kirk and the Pylon J15
Rare 1968 STAR TREK TOS 35mm Film Clip CHILDREN SHALL LEAD Kirk Grabs Leslie K10
Rare 1968 STAR TREK TOS 35mm Film Clip PLATO'S STEPCHILDREN Trimmed Action K27
Rare 1968 STAR TREK TOS 35mm Film Clip GAMESTERS TRISKELION Kloog and Kirk G12
Rare 1968 STAR TREK TOS 35mm Film Clip EMPATH Spock Tends to a Dying McCoy K49
