Giant-Size Superstars was re-titled Giant-Size Fantastic Four with issue #2, as this Marvel ad heralded to all fandom, it was now available in a Giant-Size 50 cent edition!
I always thought this cover premise was a bit of a letdown. Yes, we like seeing the Thing and the FF fighting cosmic or world-ending menaces like Galactus. Gangsters in the roarin’ twenties? Not so much. Maybe the editor who came up with this idea had loved the Star Trek episode, “A Piece of the Action”, where Kirk and Spock encounter a world full of Mafia types. Nuff said.