Watch G.I. Joe: Sigma 6 Online
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- COUNTRIES: Japan,United States of America
- Subtitles: English
SIGMA 6 is the code name for a group of highly trained covert special mission operatives. Duke, Snake Eyes, Heavy Duty, Scarlett, Long Range and Tunnel Rat - who use high-tech, state-of-the-art gear along with their other hero skills to go up against the forces of evil.