A most peculiar sight had appeared within Gotham.
Led by Peter, a team of scientists dissolved a hallucinogenic drug used to extract the mysterious components of plant toxins into orange juice and distributed it in large quantities to Gotham's lower-class citizens, hoping they could break free from their madness as soon as possible.
Meanwhile, Joker's gang, represented by Harley Quinn, followed their long-standing principle of never minding if things got worse. They believed the people had the right to enjoy their freedom to go mad, so they kept attacking the teams distributing orange juice.
At first, the scientists were at a severe disadvantage. Most members of Joker's gang were thugs and hooligans from Gotham's underclass, giving them home-field advantage as they targeted the trucks transporting orange juice.
Joker's gang was clever as well. They usually struck and withdrew, wasting no unnecessary time killing witnesses. They merely stole the orange juice and delayed the antidote's distribution.
The scientific team responded in kind, changing from surface transportation to using Vines and tree roots controlled by Poison Ivy to deliver the orange juice through Gotham's sewers.
But Joker's gang then targeted the vulnerable groups in the retail stage: children temporarily recruited because of manpower shortages. They attacked several Welfare Institutes and stole the orange juice there.
If it had only been those two sides fighting, things would have been manageable. But in this chaotic city, there had never been a clean stage. No one consciously made room for duelists. Most simply added fuel to the fire amid the chaos, terrified they were not causing enough trouble.
First came the Robin Gang, who had also been anesthetized and thus were hardly clear-headed. Their greatest source of confidence was that the Bat was not home today, and their methods were the sort that would make