Part 1 of 5. Cobra has developed the ultimate weapon… the M.A.S.S. Device, capable of beaming and transporting troops, weapon and resources anywhere in the world. When Cobra uses the device to steal a military satellite, G.I. Joe is called into action.

Part 2 of 5. Ready to fight fire with fire, the JOE team constructs a M.A.S.S. Device to counter Cobra. Meanwhile, Duke, still a captive of Cobra and Destro, fights for his life in the gladiator-style arena at Cobra Mountain.

Part 3 of 5. As Duke recovers from his injuries, Snake Eyes wanders the arctic, poisoned by the radioactive crystal elements he recovered from a Cobra trap. But can Snake Eyes survive the radiation arctic conditions and dangers that await him?

Part 4 of 5. After Cobra Commander squanders his resources, both Cobra and G.I. Joe are desperate to get their hands on the final element needed to fuel the M.A.S.S. Device. It's Joe versus Cobra at themouth of an active volcano, winner take all!

Part 5 of 5. Destro returns to Cobra Mountain with Scarlett as his prisoner. As he takes control of the operation from Cobra Commander, the stakes are raised for the Joe team to stop them once and for all with an all-out assault on Cobra Mountain!

Part 1 of 5. Cobra attacks a G.I. Joe convoy and steals a high-powered experimental laser to complete their latest weapon... the Weather Dominator. When the Joes launch an air assault, Destro uses the device, and it's stormy skies ahead for the Joe team.