Terrorist Flag-Smasher is leaving a trail of blood in the New York City tunnels. But to what end? The entire team investigates, including a reluctant Marrow, still distrustful of her new, mutant family. Shadowcat flies into a frenzy. Marrow does some very questionable things.

Terrorist Flag-Smasher is leaving a trail of blood in the New York City tunnels. But to what end? The entire team investigates, including a reluctant Marrow, still distrustful of her new, mutant family. Shadowcat flies into a frenzy. Marrow does some very questionable things.