Whose side are you on? Colored pencils, crayons or felt-tip pens? Reach a decision across page after page of all-out costumed warfare featuring Steve McNiven's exquisitely rendered artwork just waiting for you to add the color! Captain America and Iron Man are the feuding Avengers leading the two sides of heroes that battle it out over the rights and wrongs of superhuman registration. This war is far from civil as friendships and teams are torn apart, and one fact is certain: The issues are anything but black-and-white. Luckily, that's where you come in! From Shellhead's gleaming red and gold to the stars and stripes of the Sentinel of Liberty, these monochromatic Marvels are crying out to be brought to life in an eye-popping kaleidoscope of conflict. The battle lines have been drawn - now, can you stay inside them?