After several successful tests using Merlin's device, General Landry sends SG-1 to use the device to protect a village from an aggressive Prior. But when the displacement field collapses bringing everything back into phase, the team and the village are left dangerously exposed when the Ori attack. Despite being critically injured, Carter is able to escape with Mitchell, though the situation looks bleak for Teal'c and the stranded villagers who face execution at the hands of the Ori.

original airdate--April 20,2007       rating--1.1 million