The culling. [graphic novel]

When the organization known as 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 the most famous teen heroes of the DC Universe have to save themselves from eachother. But the ruthless Harvest won't give up easily leading to one of the young heroes making the ultimate sacrifice for the others.