You will Watch G.I. Joe Sigma Six Episode 5 online for free episodes with HQ / high quality. Stream cartoons G.I. Joe Sigma Six Episode 5 Sigma COBRA Coast Climax! Duke, Scott, and the other Joe’s race the clock! They have 30 minutes to disarm and destroy a plasma canon or COBRA will be victorious! It’s Scarlett vs. Baroness, Heavy Duty and Tunnel Rat vs. Destro, and Duke vs. Cobra Commander! Will they stop the doomsday weapon in time?