G.I. Joe: Sigma 6

With several team members trapped at the North Pole, the scattered Sigmas have to combine a rescue operation with a desperate last-ditch assault. As Sigma Six races South for the final battle, Cobra is ready with everything they have. But deep inside Cobra's Southern Terrordrome, the frozen Snake Eyes is stirring to life. At the same time inside a battered Sea Titan, Duke hatches a shocking all or nothing plan! But nothing can prepare the Sigma's for what awaits them, a hideous new evil as Cobra Commander has taken personal control of the forces of nature!