Season Ten
SG-1's first contact with a new planet goes horribly wrong.
Though the Stargate at first appears to be in a tomb, it's actually part of a museum exhibit. The DHD is a non-functioning model.
The team are mistaken for rebels by the guests attending a function, they decide to play along and take the people hostage while they wait for Landry to contact them and send through a Naquadah generator so they can return to Earth.