Whose side... are you on?

The Marvel Universe is changing.

In the wake of a tragedy, Capitol Hill proposes the Super Hero Registration Act, requiring all costumed heroes to unmask themselves before the government. Divided, the nation's greatest champions must each decide how to react—A decision that will alter the course of their lives forever.

It's time to choose and take a side. This conflict has been brewing from more than a year, threatening to pit friend against friend, brother against brother... and all it will take is a single misstep to cost thousands their lives and ignite the fuse.

Collecting: Civil War #1-7, written by Mark Millar ('The Ultimates' (2006)) and illustrated by Steve McNiven ('New Avengers' (2006)).