A Rush of Blood

The inmates of Arkham were dosed with some drug that removes all fear. Seems to make them bulk up a bit, too. Analysis shows that the drug is likely related to the Scarecrow's fear toxin.

Around Gotham, the heroes are encountering unusually bold--and bulky--villains: Nightwing and Robin vs. the Ventriloquist; Batgirl vs. Mr. Zsasz; Katana, Black Canary, and Starling vs. the Clock King; and Batwoman vs. Cavalier.

Meanwhile, Batman attempts (unsuccessfully) to get Two-Face to talk. He then hears that the Joker has taken a train, and heads off to stop him. When he arrives, the situation confuses him: "Looks like Joker took out some of his own people... it doesn't make sense--". A girl--White Rabbit--suggests that Batman chase her, and at the end of the chase he finds her draped over a (once again) bulked up Joker sitting by a pile of his own dead henchmen.

"Next: Catch Me if You Can"