Supergirl, Vol. 5 #46 (2009)

World Against Superman - The Hunt For Reactron, Part Four: Conclusion
Reactron has murdered Squad K, and has the three renegade Kryptonians in his power. But Reactron has underestimated his quarry, as Chris comes to the realization that the red-sun inhibitor collars the three are wearing isn't doing anything to his tactitle telekinesis. As Lois Lane catches up to witness the fight, the three struggle to bring Reactron under their control.
Release Date: 2009