Ultramega volume 1 contains issues #1-4 and features story and art by James Harren.

A cosmic plague has spread, transforming everyday people into violent, monstrous kaiju. Only the Ultramega – three individuals imbued with incredible powers -- hold the line against this madness. Their battles level cities and leave untold horror in their wake. Now, the final reckoning approaches for the Ultramega... but is this a war they can even win?