The show centers on FBI special agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) who work on cases linked to the paranormal, called X-Files. Mulder is a believer in the paranormal, while the skeptical Scully has been assigned to debunk his work. In this episode, as a rebel alien race secretly attacks several groups of former alien abductees, the agents meet Cassandra Spender (Veronica Cartwright), a woman who claims to be a multiple abductee and wants to deliver a positive message about aliens. Agent Mulder, now skeptical about extraterrestrial activity, is disturbed when Agent Scully forms a special bond with the woman.