|This article needs some images such as Screenshots, Promo Art or Concepts.|
Please refer to the Manual of Style or Editing Help to get started.
T.O. Morrow, Joker's partner in creating the Joker toxin, has taken over Ace Chemicals to create an even more lethal chemical formula. Shut down his operation so Batman and the GCPD can clean up the fallout.
- "This is Batman. Ace Chemicals is the source of the Joker's toxin. T.O. Morrow created it - and he's taken over the entire factory to create his insane mutations. I'm still vulnerable from the last dose of Morrow's toxin, but you should have immunity. Take down Morrow's operation so we can clean up his madness and create a more effective antidote." — Batman