When a mysterious figure from Booster’s past resurfaces, our hero’s life is turned upside down and inside out, and only a trip through the timestream can set things straight. The shocking events of JUSTICE LEAGUE: GENERATION LOST leave Booster Gold bloody and beaten, and the only way for him to put right what went wrong and save the people he loves is to travel back into the past. But what happens when Booster comes face-to-face with himself and Justice League International?