It was after midnight, and Viola and her young escort, Ted, were in a gay and carefree mood as they alighted from a cab in front of her home and approached the door. Sneaking into the house, Vi warned him to be quiet so as not to wake Aunt Em. But suddenly there was a loud explosion, and they soon realized that the safe in the library had been blown open! Not only that, but the seal of the Green Hornet was right there, on the door...