Merrilyn Gann

A criminal believed to have died in prison years earlier wages a vendetta against Mulder.

Mulder and Scully are stalked by an ancient legion of lethal beings while investigating a boy’s claims that he was attacked by an invisible creature.

Dr. Brown is concerned that Ephram needs more extracurricular activities in order to be accepted at a top college, but Ephram is only focused on his Juilliard music school audition--which has surprising results. Amy's lack of interest in college preparation alarms her mother, Rose (recurring guest star Merrilyn Gann), more than her father, Dr. Abbott. And Bright's poor grades result in him being ejected from the football team, possibly jeopardizing the scholarship his father believes may be Bright's only chance to get into a decent school. Meanwhile, Dr. Brown tries to help a cheerleader, Stacey Wilson (Kristen Bell), who has ruptured breast implants but cares more about looking good than being healthy.

Clark is concerned about Lois' safety when she decides to cover the Vigilante Registrations Act.

Within an hour of the discovery that Amy has run away from home, the authorities are at the Abbott house to scour for clues and interview her devastated parents and brother. However, Edna arrives, bewildered by the fuss, and explains that Amy spent the night at Edna's house. This sets off a series of harsh family crises, between Edna and Dr. Abbott, Rose and Edna and--perhaps most damaging, Dr. Abbott and Rose, who asserts herself for the first time in her turbulent marriage. Amy opts to remain at her grandparents' house, but she soon discovers that she cannot evade adult responsibility. Meanwhile, with Delia furious at him for dating Linda (recurring guest star Marcia Cross), Dr. Brown tries desperately to reconcile with his daughter and find out what's bothering her--but a father/daughter camping trip may not be the best idea. And Dr. Brown copes with a woman who wants to get pregnant using the frozen sperm of her dead husband, despite the objections of her current husband.