Batman and Robin narrowly escape the Joker’s death trap and quickly get back on the villain’s trail. The villain runs the Gothham City Police Department ragged with his crimes based on the zodiac. Meanwhile, Venus, the Joker’s accomplice, warms to Batman. Eventually, the Dynamic Duo again corner the Joker. But, once more, the heroes are captured. Now, Batman, Robin and Venus are chained in a shallow pool with a giant clam. The clam swallows Robin and Batman and Venus will be next on its menu.