It now seems clear that season 5 of Stargate SG-1 will be remembered as the one in which something went awry with Daniel Jackson. Lots of behind-the-scenes rumors fueled the idea of cast tension, but whatever the problem, his sudden departure from the show was obviously through a quickly contrived scenario. In retrospect, there must have been a problem for some while before the weird penultimate episode (Meridian). Michael Shanks looks frequently bored in his rare moments of individual screen time as he infiltrates a Goa'uld meeting and even when making friends with a creature everyone else wants dead. In fact, there's only one point when everyone really seems to be having fun, and that's in the spoof 100th episode Wormhole X-treme!
It wasn't until the beginning of Stargate SG-1's fourth season that fans knew to take the Replicator threat seriously. The spidery nasties had only seemed like one of many new enemies introduced in previous years. But when the one seemingly omnipotent backbone of the galaxy was asking Earth for help, clearly we were in real trouble! In fact, the team's list of enemies expanded and got far more complicated this year. Proving without a shadow of a doubt that this is science fiction, the Russians reveal they have their own Stargate program and ask the Americans for help. This twist allows for exploration of all the political machinations occurring behind the scenes of the SG-C, all of which appear to stem from the embittered Senator Kinsey (Ronny Cox).