Episode 37 of "Stargate-SG1"
s02e15 The Fifth Race
Title: The Fifth Race
Original Air Date: 01/29/1999 on Syndication
Director: David Warry-Smith
Writer: Robert C. Cooper
Guest Stars: David Adams (Expert), Dan Shea (Sgt. Siler)
Plot Outline:
SG-1 travel to an ancient room that houses alien inscriptions in an attempt to decode alien languages discovered by a probe. When O'Neill peers through a viewer in the ancient room, he is caught momentarily in its grasp and shortly after alien words begin appearing in his speech.
Episode Pictures:
