"Crisis--At the Earth's Core!"
Tony Stark's prototype Earth-borer will revolutionize sub-surface exploration, but it harnesses dangerous amounts of power, so the world is nervous about Stark's risk-taking. In the midst of the trials, buildings start sinking out of sight, and Stark is blamed. Stark's lab suffers the same fate, and we see the culprit: the Mole Man, who is desperate for Stark's machine.
"Wanted: Captain America!"
A new villain, the Planner, has impersonated Captain America while pulling bank heists. Now Cap is a wanted man, and he has limited time to capture the Planner and reveal the truth before turning himself in to the authorities.