From the Back Cover:
SCIENTISTS PERPLEXED! MILITARY HELPLESS! SUPERMAN DEFEATED?!
Behind it all, the most powerful, sophisticated, and dangerous computer in the universe... Brainiac.
The fate of the Earth hangs imbalanced as Brainiac nears successful completion of The Doomsday Program! A module acailable for use with the New Teen Titans. Plus: Complete plans to Brainiac's ship.