Story: "The Extremist Vector, Part Five: Pushing the Button" (22 Pages)

Credits:

Keith Giffen (plot, pencil layouts)
Gerard Jones (script)
Bart Sears (pencils)
Randy Elliot (inks)
Bob Lappan (letters)
Gene D'Angelo (colors)
Kevin Dooley (assistant edits)
Andrew Helfer (edits)

Feature Characters:

Captain Atom
Elongated Man
Metamorpho
Power Girl (all four next in Justice League America Annual #4)
Flash III (next in Flash Vol. 2 #40)
Crimson Fox (Constance D'Aramis)
Rocket Red (both next in Justice League Europe Annual #1)

Guest Stars:

Silver Sorceress (also disguised as Crimson Fox)
Blue Jay (last in issue #17)

Supporting Characters:

Sue Dibny
Catherine Cobert (both last in issue #17; both next in Justice League Europe Annual #1)

Villains:

Dreamslayer
Lord Havok II
Gorgon II
Tracer II
Doctor Diehard II (all five last in issue #17; all five as the Extremists; all five next in flashback in Justice League America #59)

Guest Appearances:

Martian Manhunter
Maxwell Lord (both last in Justice League America #42; both next in Justice League America Annual #4)
Doctor Light IV (last in Justice League International Annual Vol. 1 #3; next in Justice League Europe Annual #1)

Other Character:

Mitch Wacky (also in flashback in between flashback and main story in issue #18; next in issue #21)
Carny