Gotham's underworld figures meet for a summit and suspicion and paranoia result in a shootout in which several of them are killed, causing chaos to break out in the city, and Oracle, Batgirl, Nightwing, Orpheus, Onyx, and Tarantula try to keep order while Batman determines who caused these events.
General Note
"Batman created by Bob Kane.".
"Originally published in single magazine form as Batgirl 55, Batman 631, Gotham Knights 56, Batman: legends of the Dark Knight #182, Batman: the 12-cent adventure, Catwoman 34, Detective Comics 797, Nightwing 96, Robin 129"--P. facing t.p.