When a bomb rips open a rift in the Multiverse, the Teen Titans come face to face with a duplicate set of heroes from another dimension. But wait! These new Teen Titans are more than 70 years old! Can the youthful youngsters work with the savvy seniors to battle the Super-Villain known as The Brain? Or will the generation gap doom all ten heroes to a defeat for the ages? Find out in this hilariously mixed-up Multiverse chapter book for fans of Teen Titans Go!.