The Legion #30

After a brief fight, the four latecomer Legionnaires realize that the defeated Darkseid had not successfully prepared for collapsing time, so they travel back in time to the moment right after the Darkseid from the past arrived in the future through a Boom Tube. As the quartet drives the Darkseid from the past back to his own era, the remaining Legionnaires fight the present-day Darkseid. Weakening, the contemporary Darkseid has to take back power from his servants, who are returned to their former lives, until a confrontation with Clark Kent ends with Darkseid down and Clark back to normal.