As if the Source Wall incursions causing a metagene pandemic weren't enough, team dysfunction threatens this latest iteration of the Titans before their new mission even gets off the ground! Night-wing and Miss Martian butt heads over the team's M.O. as the fate of the latest metahuman hangs in the balance! They'd better get their act together, because one of the Titans won't be coming home from this Source Wall mission-and it's not a vacation day!