Speculative fiction is a broad umbrella category of narrative fiction referring to any fiction story that includes elements, settings and characters whose features are created out of imagination and speculation rather than based on attested reality and everyday life. That encompasses the genres of science fiction, fantasy, science fantasy, horror, alternative history, and magic realism.
When communications are cut off from a remote archaeological outpost,
the crew of the Enterprise is sent to investigate, only to
discover a ravaged outpost, a dying scientist, and a mystery involving
a legendary object of power.