Superman has Metallo subdued enough to take him back to prison, but when the arch-villain presses a button on his breastplate, it throws Superman in a Kryptonite spotlight, putting him on his knees. Firestorm tries to help, but keeps changing the harmful green Kryptonite into other colors, red, gold, pink and black. Chided by the professor, Firestorm tries hard to remember the formula to neutralize the deadly element.
Cartoon Network is home to your favorite cartoons, full episodes, video clips and free games. Play with your favorite Cartoon Network characters in Teen Titans GO! games, Adventure Time games, Regular Show games, Gumball games and more. Watch episodes and video clips of your favorite TV shows like Adventure Time, The Amazing World of Gumball, Regular Show, Ninjago, Teen Titans GO!, Steven Universe, We Bare Bears, Clarence and more.