Major Carter joins an alien pilot for a space race, where the winner is awarded a lucrative contract with the planet's most powerful corporation. But the rest of the team discovers that there is more at stake than the finish line.
Daniel is plagued by dreams of his former girlfriend, who has been taken as a Goa'uld host. Samantha Carter begins a romantic relationship with a detective, from whom she must hide her life at Stargate Command.
The fate of the galaxy hangs in the balance as Sam and Jacob search for the only weapon capable of stopping the Replicator onslaught. O'Neill leads a defense of the S.G.C., while Daniel squares off against Replicator Carter.