



The Original Series: Season 3 (1968-1969)
S03E11
Stardate: [unknown] Year: 2268
An alien energy-based life form forces the crew of the Enterprise into a conflict.
Broadcast: 18 October 1968
Format: Episode
Prod #: 066
Writer(s): Jerome Bixby
Director(s): Marvin Chomsky
Story Order: 234 | Correct Order: 67