Teen Titans, Vol. 3 #19 (2004)

Titans Tomorrow, Part Three: East Meets West
Thanks to Deathstroke, the Teen Titans know where to find the cosmic treadmill - in the Batcave! They learn the Titans divided the country into a west the more or less rule, and the east which is free, and the Titans East oppose them. There is a big battle when the Titans travel east to reclaim the Teen Titans. Batman's plan is to erase their memories of the future and send them back in time. He reasons that if they are oblivious to the future they will make the same decisions that created his world. The battle ends with several Titans down, and the Teen Titans and Titans East crashing the Batcave. But Batman has tricks up his sleeve; he transforms Captain Marvel Jr. back to his human self, and has kryptonite to use against Superboy. This is not enough, though. The Titans return home with help from the future Flash. They will not make the decisions that turned them evil. Or will they? In the final panels, Superman returns to Kansas seeking help from his "pa" - not Jonathan Kent, but Lex Luthor!
Release Date: 2004