Captain America vs. Baron Zemo

An introductory adventure for the Marvel Super Heroes Adventure Game, released in a comic book format.

From the introductory text:
Welcome to the Marvel Universe, true believer!
You're clutching a free sample of the Marvel Super Heroes Adventure Game. With it, you can experience Marvel action personally in a fight between Captain America and Baron Zemo. You can play alone or let one of your friends play against you. Then you can trade parts and play again!