Ep 15. The Last Laugh

In season 1 episode 15 of Batman: The Animated Series titled "The Last Laugh," viewers are introduced to a new villain known as the Joker, who makes his first appearance in the series.

The episode opens with a daring heist at a chemical plant, carried out by the Joker and his henchmen. Batman quickly arrives on the scene to stop the robbery, but the Joker's men are armed with deadly laughing gas which they unleash on the Dark Knight. The gas causes Batman to experience uncontrollable laughter, rendering him helpless and forcing him to retreat.

Back at the Joker's hideout, the villain is shown to be planning his next move and reveling in the chaos and destruction he has caused. Meanwhile, Batman is taking the necessary precautions to protect himself from the Joker's gas, by creating a special filter for his mask.

Throughout the episode, the Joker continues to wreak havoc on Gotham City, planting bombs and releasing the deadly laughing gas. Batman and the police are constantly on the move to stop the Joker and his henchmen, but each encounter proves to be more challenging than the last.

As the city becomes increasingly chaotic and the death toll rises, Batman realizes that he must think outside the box in order to defeat the Joker. He begins to piece together clues that eventually lead him to the Joker's plan to release a massive amount of laughing gas from a hot air balloon during a parade.

With the clock ticking, Batman races against time to stop the Joker's final act of terror. He confronts the villain in a nail-biting showdown on the hot air balloon, with the fate of Gotham City resting in the balance.

Overall, "The Last Laugh" is a thrilling episode filled with action, suspense, and the introduction of one of Batman's most iconic villains. It showcases the ingenuity and resourcefulness of the Dark Knight as he battles against an enemy who seems to always be one step ahead. Fans of the series and Batman in general will not want to miss this exciting installment.