"The Triumvirate of Terror!"
After defeats by Superman, Batman and Wonder Woman, Lex Luthor, the Joker and the Cheetah join forces and trade opponents.
Wonder Woman is presiding over a tournament on Paradise Island when the Joker infiltrates the tournament in drag and gasses all the Amazons. He then zaps Queen Hippolyta and Wonder Woman with his Joker Buzzers. Wonder Woman rallies, but falls victim to his gas-spraying boutonniere. She is tied up with the lasso and teleported to the Hall of Doom. But the heroes break free, and team up to defeat the villains.