The alien invasion is putting a strain on the efforts made by the JLA and the 99! Firestorm has to contend with three startling additions to his matrix, while Hawkman disagrees with the 99's approach to stopping the Noor Stone's latest candidate. Rughal's nefarious team-up with the space-born villain has successfully put the JLA and the 99 at odds unless Batman can find the one item that will end this assault on the two venerable super hero teams – and the Earth itself!
