Story: "Critical Mass" (54 Pages)

Credits: Tom Peyer (plot, script)
Luke McDonnell (pencils)
Doug Selogy and Mark Probst and John Dell and Ande Parks (inks)
Jay Oubleyew (letters)
Gene D'Angelo (colors)
Peter Tomasi (assistant edits)
Dan Raspler (edits)

Feature Character:

Atom II (last in Superman Vol. 2 #95; next in Guy Gardner: Warrior #29)

Supporting Characters:

Jean Loring (last in Suicide Squad Vol. 1 #44; next in Teen Titans Vol. 2 #6)
David Palmer (deceased)
Susan Palmer (both last in flashback in Power of the Atom #6)

Villains:

Doctor Shrivel (Professor Milo Shrevlak; first appearance; a teacher at Ivy University)
Colonel Wing (first appearance)
Boggs (dies)
Gabriel (first appearance of both; two of Wing's men)

Guest Appearances:

Martian Manhunter (last in ???; next in ???)
Flash III (last in ???; next in ???)
Wonder Woman (last in ???; next in ???)

Other Characters:

Gannon (first appearance; police officer)
Diaz (first appearance; a police photographer)
Tom Cunningham (first appearance; a security guard at Ivy University Library; dies)