Brief Candle (S01E08)

Col. Jack O'Neill and the SG-1 team travel through the stargate to Argos, where they encounter a young woman giving birth. After Dr. Daniel Jackson delivers the child, the team is invited to a festival, where they find a civilization of beautiful, happy people who celebrate while the sun shines and mysteriously drop to sleep the minute that it sets. More mysteriously, the people of Argos seem to age very rapidly — a lifetime for them is 100 days — an effect that O'Neill unwittingly inherits when he is seduced by Kynthia, a stunning Argosian woman. As O'Neill's hair turns gray and his life races past, the rest of the team returns to base to try to discover a cure for whatever is making him and the Argosians grow old so quickly. Capt. Samantha Carter discovers the culprit: nanocytes — microscopic robots that circulate in the blood stream, apparently placed there as part of a cruel experiment by Pelops, a Goa'uld whom the Argosians worship as a god. Unfortunately, the team can't figure out how to turn off the nanocytes — and, unless they can, O'Neill will soon be dead. (Metro-Goldwyn-Mayer (MGM))