Teen Titans Vol 2: The Culling

The Culling is a four-part crossover event featuring the Teen Titans, Superboy, and the members of the Legion of Super-Heroes stuck in the present as detailed in Legion Lost. The storyline focuses around an event called the Culling.
In these tales from Teen Titans 8-14 and DC Universe Presents #12 th organization called N.O.W.H.E.R.E. captures Superboy, the Teen Titans and Legion Lost and pits the young heroes against each other to weed out the weak! It will take everything these heroes have to save themselves-but the ruthless Harvest won't give up easily!