You know, it always makes me feel odd to meet another Superman, who's been in action since before World War II. Hmm... I wonder if I'll be in business that long.
- — Superman
World's Finest #271 is an issue of the series World's Finest (Volume 1) with a cover date of September, 1981.
Synopsis for "The Secret Origins of the Superman-Batman Team"
Superman and Batman are baffled when a Kryptonite-radiating villain named Atoman, whom they have never met before, appears and sets out to destroy the Man of Steel. This causes Superman to dream of encounters a different Superman, Batman, and Robin had with the villain-- and indicating Atoman is from Earth-Two. Knowing this truth, Superman and Batman transport the villain back to Earth-Two, where they are assisted by the Superman and Robin from that world. Once Atoman is defeated, Batman and Superman return to Earth-One to continue their adventures together.
Appearing in "The Secret Origins of the Superman-Batman Team"
Featured Characters:
Supporting Characters:
Antagonists:
- Atoman (Single appearance)
- Nazis (Flashback only)
- Dr. Teufel (Flashback only)
- Dr. Melch (Flashback only)
Other Characters:
- Robin (Flashback only)
- Carter Nichols (Flashback only)
- Lana Lang (Flashback only)
- Pete Ross (Flashback only)
- Batman (Earth-Two) (In a vision)
- Perry White (Earth-Two) (Flashback only)
- Lois Lane (Earth-Two) (Flashback only)
- Jimmy Olsen (Earth-Two) (Flashback only)
- Robots (Flashback only)
- Ed (Single appearance)
- Charlie (Single appearance)
- Pete Groff (Single appearance)
- Steve Lombard
- Al (Single appearance)
- Ralph (Single appearance)
Locations:
- Earth-One
- Fortress of Solitude (Flashback only)
- Gotham City
- Metropolis
- Smallville (Flashback only)
- Earth-Two
- Metropolis
- Daily Star (Flashback only)
- Sportsman's Stadium
- Germany (Flashback only)
- Metropolis
Items:
- Batrope
- Green Kryptonite (Flashback and main story)
Vehicles:
- Batplane (Flashback only)
Notes
- Jack C. Harris and E. Nelson Bridwell contributed to the story, as indicated in the credit box.
- This issue is the 200th anniversary issue of Batman and Superman's debut as a team in the World's Finest Series. As a celebration, the issue features all previous "first meetings" of Batman and Superman, therefore there are several refences to past comics and other media such as:
- The Adventures of Superman Radio Show (Batman and Superman's first meeting ever)
- World's Finest #84
- Adventure Comics #253
- Adventure Comics #275
- Superboy Spectacular #1
- World's Finest #94
- Superman #76
- World's Finest #200
- World's Finest #71
See Also
Links and References

The events from this issue or series involve a Multiversal Crossover between Pre-Crisis worlds and characters. This template will categorize articles that include it into the Pre-Crisis Multiverse Crossover category.
See also Post-Crisis Multiverse Crossovers.