Story: "Gotham Underground, Book Six: Breaking Out" (22 Pages)

Credits:

Frank Tieri (plot, script)
Jim Calafiore (pencils)
Jack Purcell and Mark McKenna (inks)
Sal Cipriano (letters)
Brian Reber (colors)
Jeanine Schaefer (associate edits)
Mike Marts (edits)

Feature Characters:

Batman (last in issue #4; disguiced as Matches Malone)
Robin III
Wildcat II
Nightwing II (disguiced as Freddie Dinardo/Heatwave)
Vigilante VIII
Spoiler

Supporting Character:

Alfred Pennyworth

Villains:

Tobias Whale
Great White Shark (last in issue #4; also in flashback in between Batman #654 and in issue #4)
New Rogues (last in issue #4)
Bat Killers
Dead End Boys
Five Points Gang
L.O.D.
Femmes Fatales (first appearance of all; Penguin sponsored supervillain teams)

Guest Appearances:

Bronze Tiger
Bane
Captain Boomerang II
Deadshot
Plastique (all five in flashback preceding issue #1; all five as the Suicide Squad)

Comments: The cover of this issue combines with the covers of issues 1-5 and 7-9 to form a single image.