When Batman battles Chemo, he is aided by the Metal Men. After the battle, he deduces that they were created by William Magnus. He joins them at Magnus' plant. Later they're attacked by living gas who take Magnus. Batman along with the Metal Men try to find him. They eventually find him and learn who the ones who took Magnus are and what they want from him.
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[Batman's about to sit down when he notices Platinum has turned herself into his chair
Best seat in the house, Batman.
Thanks, I'll stand.