Written by Gardner Fox with art by Gil Kane and Murphy Anderson. Witness the mighty mite in two tales of tiny bravery by the masters of DC's Silver Age. First off, the Atom must "Ride the Deadly Grenade," in order to smash a commie plot to bomb the CIA. It all begins in an innocent looking toy shop in Vienna, Austria. There, the toymaker Ferdinand Alt has summoned the U.S. Consul in order to sneak out a wondrous invention that could help the Armed Forces defeat the power of gravity. This tiny saucer is also apparently being sought by Red agents who clash with the World's Smallest Super Hero. The action picks up even more steam when the Atom must fly the toy out of Europe and across the ocean to America. But is he falling right into the plans of the spies?
Then, in "the Mysterious Swan-Maiden," the Atom must solve the case of a secretive woman who can seemingly transform into a beautiful bird and get away with stolen loot as a result. When Ray (Atom) Palmer's lawyer girlfriend Jean Loring must defend a swan from charges of bank robbery, witnesses line up to tell of how the bird is actually a lovely blonde. Even a mythology professor gets into the act by describing the Norse legend of shape-shifting Swanmays. But the Atom senses something else lies at the heart of this mystery and is soon on his way to the Swan Maiden's nest to end her crime spree.