Five cover versions exist: a Direct Sales and Newsstand cover with the same art and 3 variant art covers a with hologram attached.
This issue has variants:
Robin [Tim Drake]; Joker; Osgood Pellinger; Ives; Alfred Pennyworth
Synopsis
Using schematics supplied by Osgood Pellinger, the Joker infiltrates the Phone Company and plants a device that will give him control of the computers in Gotham. Joker also figures out that the Batman is out of town and Robin is on his own.