While the Turtles are watching their favorite TV show, Sleuth on the Loose, which stars April's Aunt Agatha, April interrupts the broadcast with a special bulletin about a break-in at Dynamic Science Labs. The Turtles rush over there and agree to guard the remaining objects, which have not been stolen - yet. But somehow, while the Turtles were just outside the room that housed these objects another one disappeared - yet no one had entered the room from outside and the surveillance cameras picked up no one from inside the room. They seemed to have literally disappeared.