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