Sezon 4

Math classes at school are suspended due to budget cuts. Instead, the school receives new electronic equipment. Bo attends another school that has banned electronics and kept math in order to find out what's going on.

A ghost takes over Alicia's body and tries to make her kill Mr. Howie.

A very rare and dangerous sample of a deadly virus is stolen from the laboratory.

Shirley and Bo, along with 'Cowboy Matt' try to find the head of Kaeon. Meanwhile, the students start a protest to get math classes back.

Strange incidents are keeping the Sussex Hornets from winning the basketball championships. After one of the 'accidents' causes Bo to hurt his ankle, Shirley decides to find out who is behind the sabotage.

Shirley discovers a skeleton out while walking Watson. However, she suspects something is suspicious when the coroner won't admit to the fact that the body had a ring on one of it's fingers.

A French boy, Maurice, is trying to get Alicia's attention. Shirley believes that he is too perfect. Meanwhile, Alicia is also being scouted by an ad agent. The agent and Maurice seem to be connected.

Shirley and Bo must protect a teen tv star from an assassin.

When Shirley recieves an orchid from a secret admirer, a bee sting sends her into an anaphylactic-shock-induced dream where she tries to figure out who was the sender, with the help of clips from past shows.

When a dancer in a visiting Ukrainian dance troop steals a religious icon, Bo learns an unpleasant Sawchuck family secret.

Shirley and Bo discover a new side to Molly when they try to save Molly's horse, Foxglove, from being put down due to a suspected rabies infection.

Shirley tries to find out what's wrong with Mr. Howie after he's arrested for imprisoning Ms. Stratmann during a medieval festival.

Bo gets sucked into a real-life adventure game.