Episode 200 of "Stargate-SG1"
s10e06 200
Title: 200
Original Air Date: 08/18/2006 on SciFi
Plot Outline:
Mitchell eagerly awaits the next off-world mission, which will be the 200th trip through the Stargate. However, Martin Lloyd returns and seeks help with his movie script. The Pentagon orders the SG-1 team to assist because the decision makers believe a film about intergalactic wormhole travel will provide a good cover story for the Stargate program.