Friends and Foes: Season Two
This is another in the Stargate SG-1 roleplaying books and is centered on the events in season two of the show.
The book starts out with what is basically an episode guide for the second season. Then the book goes into various non-playing characters (NPCs) for the game following this with new rules for the game and various other new things that are game-related.
The way it is written the book is primarily of interest only to game players, since there is another series of non-game books that go over the events of the various episodes.