When a space shuttle mission is sabotaged, Mulder suspects it may be the work of an evil extraterrestrial spirit that inhabits the body of a former Gemini astronaut.
While probing a series of ritualistic murders, Mulder becomes involved with a beautiful suspect who may be a vampire.
While investigating a curse on an unearthed artifact, Mulder and Scully battle a shaman spirit that takes feline form.
Clark and Lois meet Smallville's newest arrival face-to-face, and she has some surprising news. Clark decides to leave Smallville and continue with his superhero training but Jor-el informs him that a new Kryptonian menace has arisen.
When the local cops put the heat on Sonny Steelgrave and bust up several of his secret deals, he smells a rat in the inner circle and Vinnie finds himself the number one suspect.
