One member of an SGC unit has committed suicide and three others are near death. Their condition is a mystery, but the answer could well lie in a strange offworld temple. O'Neill, Carter, and Teal'c check out the site and discover a room with a mesmerizing light display. They conclude that the temple was, at one point, a Goa'uld pleasure palace. As their investigation progresses, they come to realize that the temple is directly affecting their brain physiology - delivering euphoric highs while they are on its premises, and debilitating lows of withdrawal when they attempt to leave. Trapped, they must find a way to break this otherworldly addiction. As it turns out, a young man, seemingly unaffected by the strange environment, may hold the key to their salvation