Infinity Inc., Vol. 1 #53 (1988)

Death, When It Must Come
Infinity have their final showdown with Injustice Unlimited and Brainwave at last frees himself of the lingering presence of his father. In the aftermath, the evil Harlequin may or may not be dead and Hazard has repented of her criminal deeds, but Stellar Studios is reduced to smoldering ruins and Infinity, Inc face an uncertain future...
Release Date: 1988