"Citizen Joe" is the fifteenth episode for season eight of the Canadian-American military science fiction television series Stargate SG-1.
The viewer is then taken to a flashback 7 years earlier where Joe, the man in O'Neill's house, is at a garage sale and picks up a mysterious black stone.
As the episode goes on, skipping ahead in years, the people he tells start to get tired of the tales of SG-1 and, eventually, they stop coming to his barbershop.
At this point he tries to find evidence that what he has been seeing is real, collecting data on mysterious stellar phenomenon and unexplained deaths, but is unable to contact Colonel O'Neill.
It is then discovered that the reason Joe has been seeing the visions, flashes of the life of Jack O'Neill, is because of an Ancient long-range communication device brought back from P3R-233.
When Jack had been on the base, writing his mission reports of their off-world adventures, the stone in Daniel's lab transmitted his thoughts to Joe.
Bruce Woloshyn (digital effects supervisor) appears in a cameo as the garage sale homeowner who sells Joe Spencer the Ancient stone device.