Stargate SG-1 (1997)

Episode Overview

Title: The Fifth Man Plot: O'Neill and Lieutenant Tyler find themselves under siege by Goa'uld troops, isolated and surrounded in hostile territory. Meanwhile, back at their base, the rest of the team realizes they have no prior knowledge of Tyler's identity or background, leaving them puzzled about how he fits into their mission. As the situation escalates, both the team and the two men in peril must confront the truth about loyalty and trust.