*SG-1 awakens in a mysterious facility on P3R-118 with no memory of their former lives. A memory stamp procedure has given them new identities. No longer O'Neill, Carter, Daniel, and Teal'c, they are now Jonah, Therra, Carlin, and Tor. Unaware of the prosperous domed city above them on the surface, they are doomed to live a dreary existence as workers within a massive underground complex providing energy for a planet in the midst of an ice age.
*Source: back of card.