When Batman intercepts a police radio call reporting that a giant is attacking an armored car, he and Bruce Wayne correctly guess that the grotesquely mutated Charlie "Big Time" Bigelow, recently escaped from prison, is responsible. What they don't know is the identity of the man he's working with. The next day, while Terry and Max are discussing Charlie's fate, Terry is jumped and kidnapped by some of Big Time's accomplices, unintentionally separating him from the knapsack with his Batman suit.
Big Time takes Terry back to his hideout, again offering him a chance to work with him. When Terry instead offers Charlie a way out, he takes it -- with consequences Terry doesn't expect.