Man, I almost forgot how much Giffen's art can rock. When he's on, he's on.
As the story begins, a monster of a man breaks into Cadmus Industries, marching through everything in its path.
O.M.A.C. leaps down the elevator shaft to Cadmus' secret underground levels. He makes his way to the mainframe, smashing through a variety of Kirby-esque enemies in his path.
Reaching the mainframe, he connects his mysterious master to it. Then, his mission accomplished, he teleports out and reverts to his human identity, who has no memory of all that's transpired.