The Lights of Zetar
Series: Star Trek
Airdate: January 31, 1969 | Year Set: 2269
Season 3, Episode 18
Summary
A mysterious storm has inflicted heavy - perhaps irreparable - damage on the library planetoid Memory Alpha. And it seems to have a curious affiliation with new crewmember Myra Romaine. As the Enterprise pursues the hazard, Romaine falls more under its influence, and the crew learns is is not a storm at all, but a form of life that means to survive at ANY cost.