In this episode, Data, suffering from amnesia, unintentionally exposes a pre-industrial alien village to dangerously radioactive materials; Troi takes tests necessary for a promotion from Lt.
As the village folk begin to wear the fragments as jewelry, they start to succumb to radiation poisoning, though Talur is unfamiliar with the symptoms.
Data uses his own, more scientific methods and concludes that the metal fragments are causing the illnesses, and, with Talur's help, attempts to urge the villagers to get rid of them.
After several failed attempts to save a badly damaged Enterprise without putting anyone at risk, Troi eventually realizes that she may not be able to avoid sacrificing some of the crew, and orders the holographic Geordi to perform repairs in a hazardous area that will quickly kill him.
[5] This set included episodes from "Lower Decks" to Part II of "All Good Things", with English and Japanese audio tracks.