Trouble was a young man working for Intergang.
History
With advanced Apokoliptian technology, Amy and Trouble staged a robbery on the Metropolis Expo Center to steal equipment. Superman intervened and threw Amy into a car, but Trouble turned his freezing gun on him. He managed to get the Man of Steel on his knees but was frozen when Superman turned his heat vision on a fire hydrant below Trouble. Amy recuperated and distracted Superman, and subsequently freed Trouble. They escaped without any of the loot, which was destroyed in the fight.
Trouble and Amy returned to Granny Goodness. She wasn't too pleased they didn't bring anything. Trouble cared little—he considered himself too smart for her, and didn't plan on following her for too long. When Supergirl arrived and Granny sent the Female Furies after her, Trouble fled.