"Destro, the twisted-yet-honorable arms dealer from Scotland is planning something big — a new weapon called the Mass Device that can — and will — change the face of warfare forever! Meanwhile, G.I. Joe is under attack in their own secret base of operations! But who could have found — much less attack — them! Where has Snake Eyes gone and what is his mysterious connection to G.I. Joe member Scarlett? And under the shadows, whispers of a terrible and powerful organization grow louder. Whispers that say one word over and over...""COBRA."""