Batgirl must stop The Calculator from unleashing upon Gotham City a nanovirus that will turn its citizens into mindless techno-zombies.
A string of bizarre, technology-based suicides gets the attention of both Batgirl and Oracle – for very different reasons. The two heroes soon realize that they’re targets of The Calculator, a nefarious villain bent on revenge against the original Batgirl, Barbara Gordon, now known as Oracle.
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