The Gathering (S01E01)

This two-part pilot episode for BABYLON 5 was originally telecast as a single two-hour TV movie. Like the subsequent series, "The Gathering" takes place in the 23rd century, and was set on Babylon 5, a space station hovering in neutral territory which is used as a center of trade and diplomacy for a wide variety of friendly and hostile planets. As the space station becomes fully operational, the crew must deal with the attempting poisoning of Vorlan ambassador Kosh Naranek, for which B5 commander Jeffrey Sinclair is being held responsible. Complicating matters is the refusal of the Vorlans to allow any medical treatment for their ambassador. (official distributor synopsis)