G.I. Joe Sigma 6

Cobra hits the G.I. Joe team on two fronts: the North Pole and in the Amazon. The Joes fight off hordes of new-style B.A.T.s and deploy some new hardware of their own.

After hacking into the Sigma 6 computer and infecting it with a virus, Destro sends Zartan and the Dreadnoks on a rescue mission to free their leader Cobra Commander. Meanwhile, Duke visits General Hawk in the hospital.

With Cobra Commander back in charge of Cobra Command, he launches a full-scale assault on G.I. Joe Headquarters. Meanwhile, Scott Abernathy and Spud are pursued by Overkill's B.A.T. creation Overlord Vector.