You will Watch G.I. Joe Sigma Six Episode 8 online for free episodes with HQ / high quality. Stream cartoons G.I. Joe Sigma Six Episode 8 Vacation The vacation episode! The Sigma team decides it’s time for some R&R and they got to Las Vegas for some time off. As soon as they get there, though, they see that Destro is using his casino as a front for developing a super laser. Scarlett and Tunnel Rat must infiltrate the casino and stop Destro before he can finish his master plan!