StarGate SG-1 Cure Part 1

StarGate SG-1 Cure Part 1 Dics 3 Season 6 Episode 10 SG-1 visits Pangar, a planet inhabited by humans who developed a drug that makes their immune system prefect. Unknown to SG-1 is the means by which the drug is produced, a starting discovery that may hold the key to the origins of the Tok'ra.