"The Gangsters and the Giant!"
Giant-Man's skills at cybernetically changing size from ant to giant in a heartbeat are improving. The police chief asks for Giant-Man's help in handling the Wrecker, a mobster with a protection racket.
"A Titan Rides the Train!"
The Leader relaxes in his secret lab, reminiscing about the gamma radiation accident that gave him his powers. He is ready to release his all-powerful Humanoid to do his espionage. General Ross is moving one of Banner's nuclear inventions to a new location, and the Leader sends his Humanoid to steal it. The Hulk saves the day but gets blamed for the espionage.