Team Superman and the Atom must make a fantastic voy...journey to save the Man of Steel in part 1 of the 4-part story, “Critical Condition”! Superman has collapsed and now it's up to the Atom and Team Superman (Superboy, Supergirl and Steel) to save him. And the only way to do that is to shrink and enter Superman's body!
It's a "Super" Fantastic Voyage into Superman. Can a shrunken Team Superman and Atom save Superman?
Continues in: Adventures of Superman #580
This story arc is reprinted in Superman: Critical Condition (2003)
"2000 26"--Superman "S" in upper left hand corner.