Razor is cool stuff and worth buying if you already have the rest of BSG. It is pretty much a stand-alone movie that takes place roughly between the end of season 2 and the beginning of season 3. It follows the Battlestar Pegasus as opposed to Galactica. It bring in a new character, Kendra Shaw who is assigned to the Pegasus. The movie is pretty much about a mission the Pegasus goes on, under the command of Lee Adama, while flashbacking to the command of Admiral Caine and how she led the Pegasus since the initial attack. At the time when it came out it provided clues towards the end of the show. "Kara Thrace is the harbinger of death" is first heard in Razor. Its a good exciting adventure, most of the BSG characters are around just in smaller roles, but you still get alot of Starbuck and Lee. It definately worth checking out if you liked the show, as it is a great companion to it and will give you more background on the Pegasus crew (since they kinda just show up mid season 2, and all of them seem to be assholes at first)If you liked the show, Razor wont disappoint at all.