- Script
- Jeph Loeb
- Pencils
- Duncan Rouleau
- Inks
- Jaime Mendoza
- Colors
- Tanya Horie; Richard Horie
- Letters
- Richard Starkings
- Genre
- superhero
- Characters
- Superman [Clark Kent; Kal-El]; Superboy [Kon-El]; Supergirl [Matrix; Linda Danvers]; Steel [John Henry Irons]; Atom [Ray Palmer]; Lois Lane; Jimmy Olsen; Dr. Sarah Charles; Dr. Kitty Faulkner; Prof. Bridgette Crosby; Lex Luthor; Mercy; The Prankster [Oswald Loomis; as Steel]
- Synopsis
- While Superman is under medical care, the Atom launches Supergirl, Superboy, and Steel on a fantastic voyage into Superman's body to destroy the kryptonite tumor identified as the cause of his illness. But very quickly, something goes very wrong and the micro-ship explodes.
- Reprints
Continued in Adventures of Superman #580.