After Max Mercury disappeared in the timestream, Bart took up residence in Keystone City with Jay Garrick, the original Flash, and Jay's wife Joan. When a mysterious android from the future known as Indigo attacked the Titans and Young Justice, it resulted in the apparent deaths of Donna Troy and Omen. At Donna's funeral, Nightwing disbanded the Titans. The members of Young Justice, especially Wonder Girl, felt responsible for the tragic deaths. This led Wonder Girl, Robin, Impulse and Superboy to form a new group of Teen Titans under the guidance of the more experienced Cyborg, Starfire and Beast Boy. Despite Wally West's misgivings, Bart accepted an invitation to join the new Teen Titans. Bart was later injured when Deathstroke put a shotgun to his leg. Thankfully, his accelerated healing enabled a handful of surgeons to replace his kneecap with an artificial one, and Bart was back on his feet in a matter of hours, but the effects of this encounter were much more than physical. Feeling unsure and tired of being underestimated, Bart went to the local public library and read every single book in the building. He retained that knowledge and balanced it with lack of experience. With a renewed sense of confidence, Bart left his impulsive rep behind and returned to the team as Kid Flash. When Superboy-Prime ran amok during the Infinite Crisis, Kid Flash and the super-speedsters raced to stop his rampage. While running to subdue the deranged Teen of Steel, Wally West disappeared in a burst of lightning (later to return). Meanwhile, the speedsters' combined might defeated Superboy-Prime, but severed their connection to the Speed Force in the process. Bart returned to warn the heroes of Superboy-Prime's escape. But while mere moments had passed in the present, Bart returned from his time-bending journey four years older. Bart handed his grandfather's costume to Jay Garrick, claiming he used up all his speed powers during the final battle. Bart still had his powers, but faced with the guilt over Superboy-Prime's escape, he initially decided to retire his costume. He took a job as a factory worker in Keystone City, but soon realized he must use his abilities to protect innocents. Although Bart found new challenges in harnessing the speed force, he accepted his destiny as the latest Flash in the Allen family tradition. In his efforts to tame the speed force inside him, Bart turned to