Overall I really enjoyed it. It had some really good action scenes, the CG was well done and the story was very interesting. I like that we got to see most of the regular cast including Ivanova. We didn't have any G'kar, Londo or Garibaldi. I feel bad for Zach as he finally confesses his love/interest in Lyta and she's out of it so she doesn't even hear him. Though I found it a bit far fetched that Zach wouldn't have noticed her blank stare and unusual behavior. I liked that this story tied into the Vorlons again. It's interesting to me that these aliens in Thirdspace are still ready to go and attack us as soon as the jumpgate is opened though it's been a million years since it was opened last. And it was awesome watching Sheridan rocketing himself through the battling ships... talk about being fearless.. that was crazy.
This was another fun addition to the series and I'm looking forward to the fourth TV movie next.