Story: "Big Trouble in Smallville!" (24 Pages)

Credits:

Karl Kesel (plot, script)
Tom Grummett (pencils)
Doug Hazlewood and Dan Davis (inks)
Richard Starkins (letters)
Tom McCraw (colors)
Frank Pittarese (edits)

Feature Character:

Superboy (last in Static #14; next in issue Zero Hour: Crisis In Time #4)

Guest Star:

The alternate timeline Superboy (last in Valor #23; dies)

Supporting Characters:

Dubbilex
Krypto
Jonathan Kent
Martha Kent (both in between Action Comics #700 and Superman: The Man of Steel #37)
Lana Lang Ross
Pete Ross (both last in Adventures of Superman #515)
Sally Ross (first appearance; a relative of Pete's)

Villain:

Extant (behind the scenes)

Guest Appearance:

Superman (appearance same as page 19 of Zero Hour: Crisis In Time #4)

Other Characters:

Chet
Ben (first appearance of both; two denizens of Smallville)

Synopsis:

Superboy is swept into the temporal discord of Zero Hour when he stops in Smallville, where he comes face-to-face with another super-powered teenager wearing Superman's shield.