Jack Oliver

"When a villain named Smoke attacks the Teen Titans, and lures them into a battle on a volcanic island, Terra gets tested to her limit...and beyond. It's very bad to lose control when you're throwing lava around! Is Terra more dangerous than the volcano itself?" -- Page [4] cover.

The Joker has escaped the asylum and is wreaking havoc in Gotham City. Batman will stop him, of course, but Batman himself may be the reason Joker goes on these rages.