- Script
- Keith Giffen (story); Paul Levitz (additional dialogue)
- Pencils
- Keith Giffen (breakdowns); Kurt Schaffenberger (finished art)
- Inks
- Kurt Schaffenberger
- Colors
- Carl Gafford
- Letters
- Ben Oda
- Job Number
- S-4118
- Genre
- superhero
- Characters
- Legion of Substitute-Heroes [Polar Boy; Infection Lass; Porcupine Pete; Chlorophyll Kid; Stone Boy; Fire Lad; Color Kid; Antennae Lad; Double-Header]; Superman; Ambush Bug; Chief Zendak of the Science Police
- Synopsis
- Ambush Bug hops on Superman's back just as he's going into the future. They both land in the 30th century. Superman leaves Ambush Bug in the custody of the Legion of Substitute-Heroes where he promptly breaks out and begins to wreak havoc on 30th century Metropolis.
- Reprints
- Keywords
- green kryptonite; red kryptonite; Superman Museum
Job number, page count, and credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
- Script
- Bob Rozakis
- Pencils
- José Luis García-López
- Inks
- ?
- Colors
- ?
- Letters
- typeset
- Job Number
- S-4134
Job number and page count confirmed from Julius Schwartz's editorial records, provided by DC Comics. These records also note "Giffen letter."
Letters of comment from Calvin L. Nunez, Neil Ahlquist, Kent A. Phenis, Danny Zentner, Ray Szymanski, Larry Houston, Ross Pearsall, Kevin T. Brown, Kelly Harper, Jim Morey, Billy Kennedy, and Delmo Walters Jr.