Medusa(2001) - "the X-files"

. Airing on February 11, 2001, the episode follows the show's classic "Monster-of-the-Week" format rather than its overarching alien conspiracy plotline. 🚇 The Plot

The production crew built a massive, highly detailed replica of a subway station to serve as the set. "The X-Files" Medusa(2001)

The agents eventually uncover the cause of the subterranean horror: microscopic sea creatures dubbed "medusas". . Airing on February 11