Last time I asked you about Star Trek. Now Netflix has made it so I can jump on this "Beetlestars Gallaga" I keep hearing about. Adding all the seasons available to my queue and doing a quick search I see there are still three DVDs I could rent. Where do I fit these into my viewings?

The Plan
Caprica
Razor

I think I heard Caprica is a kind of prequel, but generally when a prequel is made after a show it should be watched after the show, so just tell me what season (or mid-season) I need to slot these into.