Babylon 5 spinoff. It was canceled when
JMS and
TNT had a disagreement: TNT wanted to turn it into "Baywatch in Space" while JMS wanted to make somthing worthy of Babylon 5. It was never comperable to B5 but was still a good show.
It was about a prototype Inter-Stellar Alliance ship (with a Earthforce crew) which was seeking a cure for a plague which was created by the Shadows and released on Earth by the Drak. Started with the TV-Movie Babylon 5: A Call to Arms.