Tim Drake has been kidnapped by the Joker, and in such an event, he made sure to leave a breadcrumb trail for his teammates to follow in hopes of getting some help, and that leads the Teen Titans (minus Superboy) to Batgirl, who isn't all that impressed. Babs doesn't have the time to play with the Titans, and informs them just how fucked up the situation is... and boy is it ever.
Tim wakes up to find himself in his old (Red) Robin costume, with the Joker taunting him from above, while having fun with his wing cape, while giving the standard Bat-King weakened by family speech and what not.
Before Babs leaves the Titans to their own devices, she does tell them that Joker's MO seems to be hitting up old crimes, giving them a list of possible locations Tim could be. The titans split up, and the duo of Kid Flash and Solstice find themselves searching through an old abandoned apartment building, with Bart unkowningly seeming to kick up something with his speed.
Back in parts unknown, Joker continues to taunt Tim, finishing many of Tim's internal thoughts out loud, in a creepy way. Then Joker shows Tim a nicely drawn out plan of a certain speedster going to an old apartment building in search of Tim, kicking up some Joker toxin, and infecting everyone in the place...
Sure enough, that's exactly what happens, just as Joker had planned. Solstice and Kid Flash signal both Bunker and Wonder Girl for help, but before they can come, both of them seem to feel as if their powers are increasing (something to apparently be addressed in Birds of Prey #15, while we see Kurt Lance doing some hoodoo that's also having an effect on Black Canary).
As Wonder Girl and Bunker arrive to help out Kid Flash and Solstice, they're not alone, as the cavalry arrives in the form of Arsenal and Starfire, 2/3 of the Outlaws!