Jack and Clu decide to pool their money together and buy a used car. Molly is reluctant to allow it since her husband died in a car crash, and the boys' car turns out to have a mind of its own.
At a concert Fi meets a girl forced into entertainment slavery, for a reason. She is a siren, but unlike the evil ones depicted in legends, she just wants to go home and avoid the world.
In a small town a visit from aliens has made the wheat from their crop circles have telepathic properties. Anyone who eats it can read minds, which poses an issue greater than anyone could imagine.
When the kids find a mysterious carving on the beach, Ned becomes possessed by the spirit of an enraged sea captain. Clu prepares to leave for college.
Fi discovers she and her friends are the only people in a town where the dead come back on Halloween to carry mortals to the realm of the dead where they must stay for an entire year in torment.
Fi's Uncle Ned has to deal with an accident where his best friend Pete was squished among the rocks during a tragic fall. Now Pete's ghost has come back.
A creature from Irish folklore possesses Fi's mom and makes her do weird things, such as using the back corner of a tour bus as a backscratcher and dancing for no apparent reason.
Jack and Molly, along with their drop-out cousin, are sucked into the ideal world of a lonely little boy who has created the perfect online world for himself.
On a trip to Canada, a perverse man named Lal begins stalking Molly at her motel room. Jack finally discovers the truth about Lal, and it isn't exactly that Lal is a psycho, it's much worse.
Fi meets a man who she at first believes is mentally disabled, but he secretly lived on an army base as a little boy, and his sister has a story to tell of how he may have met an alien life form.
A close friend of the Phillips family, John, underwent traumatic heart surgery due to his heavy smoking. Now he's having horrible flashbacks of the surgery and has a mental breakdown.