Star Trek: The Next Generation Episode 17: Home Soil

VHS, 46 minutes, PARAMOUNT

At the Federation's request, an Enterprise away team beams down to Velara III to observe a group of terraformers, scientists who are working to generate life-forms on the barren planet. But when a terraformer engineer is killed in a bizarre accident, the starship team begins to suspect a destructive presence is at work. Data (Brent Spiner) and Geordi (LeVar Burton) discover a microscopic inorganic life-form, the Microbrain, that seems to be trying to communicate. Once on board the Enterprise, the Microbrain reveals that the terraformers' work has been killing Microbrain's species. Now the Microbrain has declared war on the terraformers and the Enterprise.