Bartholomew Henry "Barry" Allen is a student at Central City University who was struck by lightning, gaining the ability to think and move at incredible superhuman speeds. Using these powers, he became the vigilante hero known as the Flash. He was eventually discovered by Lex Luthor and recruited by Bruce Wayne to be a member of the Justice League in order to help defend Earth after the death of Superman.
Following his recruitment to the team, Flash played a pivotal role in the resurrection of Superman. With the team now fully assembled, Flash contributed to the successful assault against the forces of General Steppenwolf of Apokolips, forcing the alien to retreat from Earth. Afterward, Barry was hired for a position at the Central City Police Department's crime lab.