"Doom's Day"
Superboy Prime has found Connor Kent and he wants to relieve him of the mantle of Superboy on Earth, a fight ensues and Connor finds he is quickly losing the battle, calling for aid he is quickly supported by members of the Teen Titans and the Doom Patrol.
Note: The scene with the Speeders dragging Superboy Prime away is concluded in Infinity Crisis #4. Pantha and Bushido die in this issue.