Family guy, Jack Sadelstein, prepares for the annual event he always dreads--the Thanksgiving visit of his fraternal twin sister, the needy, and passive-aggressive Jill, who then refuses to leave.
Cindy finds out the house she lives in is haunted by a little boy and goes on a quest to find out who killed him and why. Also, Alien "Tr-iPods" are invading the world and she has to uncover the secret in order to stop them.
A listless and alienated teenager decides to help his new friend win the class presidency in their small western high school, while he must deal with his bizarre family life back home.