An alien probe transforms Barclay from a shy, awkward character into an arrogant super-genius who is able to interface with the Enterprise’s computer through the holodeck.

Dexter is saddled with an unwanted conspirator; Dexter worries about how Rita’s death will affect Harrison; Deb works alone; Quinn enlists an old friend’s help.

Dexter must save a life; Deb has a confrontation with a key suspect; Quinn follows up on the similarities between Dexter and Kyle Butler.

When Scully and Doggett are contacted by a man who claims his wife was murdered shortly after giving birth to an alien baby, Scully digs deeper into reports of alien…