Tom McBeath

Clark and Lois discover a spaceship belonging to Kara (recurring guest star LAURA VANDERVOORT), the mysterious young woman who recently saved Lex. But before Clark and Lois can open it, Kara appears and knocks Lois unconscious. Clark is shocked when Kara tells him she is there to protect baby Kal-El. Kara left Krypton as a teenager, simultaneously with the infant Clark, and has unknowingly been in suspended animation ever since crash-landing in the dam, so she is now younger than him. Despite Kara's arrival, a despondent Clark decides that, without Lana, there is nothing keeping him in Smallville, so he heads to the Fortress of Solitude to begin his training. However, Jor-El tells him that Kara's father, Jor-El's brother, was evil, and Kara must be watched closely. Clark must stay in Smallville to find out why she came to Earth. Meanwhile, Lex makes a stunning discovery regarding Lana and Project 33.1.

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.

An ancient artifact brought from South America to Boston triggers a series of deaths. With David Duchovny and Gillian Anderson.