The Twelve, Volume 2 by J. Michael Straczynski

A resurrected ensemble of Golden Age heroes struggles to adjust to a changed modern world while unraveling the secrets of who captured and experimented on them decades earlier; old loyalties fray as hidden agendas and political manipulation surface, forcing the group to confront betrayals, reclaim their identities, and make tragic moral choices in a bid to stop a powerful adversary whose plans threaten both them and the society that forgot them.