After chasing off Colonel Gumm, Batman and Green Hornet take a few verbal jabs at each other then go their separate ways. Gumm takes the kidnapped Miss Pinkston to his warehouse, but she leaves a message for Batman in a bowl of alphabet soup. Everyone then tracks Gumm down at the International Stamp Exhibition.
The big showdown between Robin and Kato.
Is their first crossover to be their last?