The Backstage Rage

Shaggy and Scooby-Doo find a violin case filled with money. While Scooby is distracted by a puppet that seems to be hurt, he leaves it by the curb, and it is stolen away. Shaggy, Scooby, and the rest of the gang find a string puppet controller, and they follow this to the local puppet theater, where they uncover a scheme masterminded by a shadowy figure.