If current server doesn't work please try other servers below.
Season 1 - Sep. 08, 1966
Season 2 - Sep. 15, 1967
Season 3 - Sep. 20, 1968
Star Trek Season 3 Episode 4
HD
Overview:
On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.