The legendary Jack "King" Kirby, co-creator of Captain America, returned to the title in the mid-1970s for an earth-shattering encore unparalleled in sheer scope and creativity - just in time for the American Bicentennial The Secret Empire has infiltrated American society and plans to drive the country into war with their insanity-inducing Madbomb - unless Captain America and the Falcon can find them in time Then Cap takes a trippy tour of 200 years...