Through the window of their hotel room in the Toronto Blue Jays baseball stadium, cousins Mike and Kate spot strange blue lights flashing across the bullpen and decide to investigate.
As the girls make stuffed animals at Farmer Fran's Barnyard Buddies, Nancy gets stuck in the middle of George and Bess's worst fight ever after Bess receives a mean Valentine and thinks George was the sender.
Carl knows how important it is that he pass Mrs. Scott's history test, so he is baffled when the exam goes missing after he turns it in, and must work fast to prove someone else had a hand in its disappearance.