Captain America by Mark Waid: Promised Land

The year is 2314, and the grandson of Steve Rogers lives in the utopian America of which his ancestor dreamed. The legacy of Captain America has been realized - but something sinister lies beneath the surface! A family quest leads Jack Rogers into the bowels of the Earth, far from the idyllic surface - and a meeting with the descendant of another notable Marvel hero! It's a very special look into the tomorrow of Captain America!