While asleep, Fi's aunt begins scribbling messages in a code she shared with her twin brother, Fi's dad.

The family tries to help a friend whose personality has changed following a heart transplant.

After all the strange occurrences on tour, Molly considers quitting.

A crazy veterinarian is turning her human clients into dogs.

Fi suspects that the members of student organization Jack wants to join may actually be vampires.

The family befriends a man who carries a piece of the alien ship that crashed in Roswell in 1947.

Jack uncovers the truth about his mother's new suitor.

Fi must stop a troll who is turning her family into vegetables.

While Carey is in the hospital, Fi meets a man who was the subject of a cryonics experiment.

Jack, Carey and Molly are sucked into the ideal world of a lonely little boy who has created the perfect online world for himself to try and trap Fi.

Fi unravels a mystery of the past involving the murder of a blues musicians after everybody begins to channel the same song.

The will o' the wisp returns and this time takes over Molly's body, and offers her information about her dad's death.

When Ned goes back to his childhood home for a visit, a past tragedy comes back to haunt him.

During a Christmas shopping trip, Fiona goes back through time to view her life. 

Fi discovers that the odd building they're in has a portal to the spirit world.

Fi hears a banshee, which has come to announce her grandfather's death.

Fi tries to discover the origin of a binary computer that seems to be thousands of years old.

A prodigy seeks Fi's help when he discovers his mother apparently died 2 years before he was born.

Fi suspects the animal attacks in a rural community may be the work of a werewolf.

While visiting a town over Halloween, the family finds it's filled with some strange trick-or-treaters back from the dead.

A mysterious piece of driftwood causes strange changes in Ned's personality.

The kids find that everyone in the town they're visiting seems to have developed telepathy, including themselves.

The kids find themselves inside the nightmare of Irene's nephew.

Clu's brother falls for a girl that Fi suspects is a siren.

The car that Jack and Clu bought seems to have a mind of it's own.

Fi attends a seance to try and contact the spirit of her father.