You will Watch G.I. Joe Sigma Six Episode 7 online for free episodes with HQ / high quality. Stream cartoons G.I. Joe Sigma Six Episode 7 Jungle The Power Stones are revealed! It seems that there are mysterious natural stones that have amazing technological powers that both Cobra and GI Joe are on the hunt for. In this episode, Zartan finds a Power Stone in the deep jungle and it’s up to Spirit and Snake Eyes to team up to stop the evil master of disguise!