<-- Previous EpisodeNext Episode -->
The Bruce Wayne Foundation is building an ultra-modern crime lab to serve law enforcement. But not everyone in Gotham is grateful. Not far away, inside the Dirdler Computer Service company, villainous plots unfold to end the crime lab, by persuading millionaire Bruce Wayne to withdraw his support. The first plan is simple: kidnap his ward Dick Grayson! When that scheme fails, he turns to sabotage, instructing his men to mix sand into the cement to weaken the finished concrete. But Batman discovers him there, too – too bad for him The Riddler brought every one of his Rowdies to this fight! Saving the crime lab will take the Dynamic Duo and Batgirl!
The Riddler: How do you make a rich man do what you want? You take his ward!
Barbara Gordon: (reading a riddle) What will I have when the hair of my heir loses its color?
Commissioner Gordon: (reading a riddle over the phone to Batman) When is a double-crossed mastermind like a funny comedian?
Robin: When he brings the house down!
The Riddler: A riddle, men. If you had sandwiches here, and rotten apples there, which would you use to feed a hungry man?
Punchcard: (after heavy thought) Uhhh... the sandwiches here!?!
The Riddler: Correct! The sand which is here is what you'll use to weaken the concrete! Mix a lot of sand into those cement bags!