Dubbed the Living Bomb-Burst by the subjects he once ruled within the strange dimension called the Negative Zone, the mighty Blastaar has the power to generate staggering explosions from his fingertips. But, despite this power, Blastaar was eventually overthrown, and he was exiled to our positive universe! Now he uses his concussive abilities to try to recreate his lost empire...but the Fantastic Four inevitably foil his schemes for conquest!