| Episode: | 023 |
| Season: | 1 |
| First aired in: | 1988 |
| Written by: | Joseph Stefano |
| Directed by: | Joseph L. Scanlan |
| Teleplay by: | Joseph Stefano and Hannah Louise Shearer |
| Stardate: | 41601.3 |
While the U.S.S. Enterprise is en route to rendezvous with Troi's shuttlecraft, a bizarre malfunction causes the transport vehicle to crash on Vagra II. The only life form on the planet is Armus, a sinister entity that derives pleasure from the suffering of others.
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| Guest cast: | Mart McChesney as Armus |
Last episode featuring regular appearance of Tasha Yar.