With yesterday's meatless meatloaf probably responsible for an outbreak of food poisoning at the Woodlands Junior High cafeteria, everyone blames the new science teacher, but the students in Club CSI are convinced that their teacher is innocent.
When money for a class trip to Washington, D.C., disappears from Mrs. Ramirez's room at Woodlands Junior High, Corey becomes the prime suspect, but the students in Club CSI are convinced that he is innocent.