Bad Guys

The team gates to a planet where they discover that the DHD is a prop in an exhibit, in turn, when they ask for help they appear to have come out of nowhere. Now SG-1's mistaken for hostage-taking rebels and they are forced to play the part in order to survive. Eventually SG-1 manages to use a naquada bomb power core to manually dial the Stargate, but the people on the planet cover up the incident and presumably bury the Stargate afterward.